Industry standard "Water-saving domestic water appliances"

1 scope
This standard specifies the definition, technical requirements, inspection methods and inspection rules of water-saving domestic water appliances.
This standard is applicable to hot and cold water supply pipelines installed in building facilities, and the water supply pressure is not greater than 0.6MPa. Products used: water tap, toilet and toilet system, toilet flushing valve, shower, household washing machine, etc.
2 reference standard
The provisions contained in the following standards constitute the provisions of this standard by being quoted in this standard. When this standard was published, all the versions indicated were valid. All standards will be revised, and all parties using this standard should explore the possibility of using the latest version of the following standards.
GB/T  ll76? Technical conditions of cast copper alloy in 1987
GB/T  4288? 1992 household electric washing machine
GB/T  6952? 1999 sanitary ceramics
GB/T  18145? 2000 ceramic sealing water nozzle
CJ/T  3081? 1999 non-contact (electronic) water supply apparatus
JC  707? 1997 toilet low water tank fittings
JC/T  856? Matching system of 2000 6 liter toilet
JG/T  3008? Valve for mechanical pedal shower in 1993
JG/T  3040.2? 1997 hydraulic slow-closing flushing valve for toilet flushing device
QB/T  1334? General specification for water nozzle in 1998
QB/T  3649? 1999 toilet flushing valve
3 definition
This standard adopts the following definitions.
3.1 water-saving domestic water appliances domest water saving devices
Devices and appliances that meet the same water consumption functions such as drinking, kitchen use, toilet cleaning, bathing and laundry, and can reduce water consumption compared with similar conventional products.
3.2 Water saving faucets (faucets)
Valve products with manual or automatic opening and closing and control of water flow at the outlet, which can achieve water-saving effect in use.
3.3 water-saving toilet
Under the condition of ensuring the hygiene requirements, use function and delivery capacity of the drainage pipeline, the toilet does not leak, and the flushing water quantity at one time is not more than 6L of water.
3.4 water saving toilet system
It consists of toilet, water tank and fittings, pipes, fittings, interfaces and installation technology. The water consumption for each flushing cycle is not more than 6L, that is, the sewage can be washed away from the trap of toilet and discharged into the product system of gravity discharge system.
3.5 water saving flushing valve for water closet
Valve products for toilet with delayed flushing, automatic closing and flow control functions.
3.6 water-saving shower water saving shower
Shower products that use contact or non-contact control to open and close, and have the functions of water temperature adjustment and flow restriction.
3.7 water saving washing machine
Taking water as the medium, the water consumption can be automatically or manually adjusted according to the amount of clothes and the degree of cleanliness, which meets the washing function and has low water consumption.
4 technical requirements
4.1 General provisions
4.1.1 Corrosive materials are not allowed to be used for the parts where the products contact with water; The surface of parts that directly affect the product life should be treated with anti-corrosion or made of materials that are not easy to corrode. The use of cast copper alloy should comply with the provisions of GB/T 1l76.
4.1.2 Products should not use materials or coatings containing harmful additives, and all materials in direct contact with drinking water should not pollute the water quality.
4.1.3 Products used in hot and humid environment should be able to be used for a long time at a temperature of less than 60℃ and a relative humidity of not more than 90% (the relative humidity of shower is not more than 95%), and have no adverse effects on human body and no pollution to the environment.
4.1.4 If it is an electronically controlled product, its electrical performance shall comply with the relevant provisions of CJ/T 3081.
4.2 Water-saving nozzle
4.2.1 The product shall have a water pressure of 0.1 MPa and a pipe diameter of 15mm, and the maximum flow rate shall not be greater than 0.15 L/s..
4.2.2 Inductive nozzles and delayed self-closing nozzles shall comply with the provisions of 4.2.1.
4.2.3 After leaving the service state, the induction water nozzle should automatically stop water within 2s, and it should automatically stop water under abnormal power supply voltage.
4.2.4 Time-delay self-closing nozzle water supply is not more than 1L at a time, and the water supply time is 4s~6s ~ 6 s..
4.2.5 The strength of the valve body of the ceramic-piece sealed water nozzle shall meet GB/T 18145? The provisions of 6.4.1 in 2000.
4.2.6 The strength of the valve body of the non-ceramic-piece sealed water nozzle shall meet QB/T 1334? The provisions of 5.4.1 in 1998.
4.2.7 The strength of the valve body of the induction nozzle shall meet CJ/T 3081? The provisions of 6.6 in 1999.
4.2.8 The sealing performance of the ceramic-piece sealed water nozzle shall comply with GB/T 18145? The provisions of 6.4.2 in 2000.
4.2.9 The sealing performance of non-ceramic sealed water nozzle shall comply with QB/T 1334? The provisions of 5.4.2 in 1998.
4.2.10 The sealing performance of the valve body of the induction water nozzle shall comply with CJ/T 3081? The provisions of 6.6 in 1999.
4.2.11 The service life of the switch of the product shall meet the following requirements:
A) the induction nozzle is more than 50,000 times;
B) The ceramic-sheet sealed water nozzle has been used for more than 200,000 times;
C) Other types of water taps are more than 300,000 times.
4.2.12 Other requirements for products shall be in accordance with relevant provisions in GB/T 18145, QB/T 1334 and CJ/T 3081.
4.3 Water-saving toilet system
4.3.1 The product should adopt the structure of washing urine and urine in stages.
4.3.2 The water consumption for defecation flushing in each flushing cycle of the product shall not be greater than 6L.
4.3.3 If the fittings for toilet flushing are adopted, the water consumption for urine flushing shall not be greater than 4.5L.
4.3.4 Flushing function
4.3.4.1 should meet the following requirements under the condition that the total flushing water consumption is not more than 6L:
A) Solid discharge: polypropylene ball method is adopted, and the average number of balls passing through three times is not less than 75;
B) After each washing, the ink line method is adopted, and the total length of accumulated residual ink marks is not more than 50mm;;
C) The water seal depth and water seal recovery are not less than 50mm;;
D) The dilution rate after sewage discharge test shall not be less than 100.
The transportation characteristics of 4.3.4.2 drainage pipeline shall meet one of the following conditions:
A) Rinse continuously for 30 times, at least 24 times, and all 4 samples are washed out, and the average of 24 times.
B) All four specimens rushed out of the toilet and rushed into the sewage riser through the 5m horizontal pipe.
4.3.4.3 Trap should be able to pass φ 40mm solid ball.
4.3.5 The water absorption rate of the ceramic toilet is not more than 1.0%.
4.3.6 Water tank fittings shall meet the following requirements:

A) The operating mechanism is stable and reliable, and easy to operate. Flexible action, no jam.
B) The strength and sealing performance of the inlet valve shall meet the first-class requirements specified in JC 707.
C) Under the water supply pressure of 0.05MPa, the water inflow time is not more than 120s.
D) The spillway must be 20mm higher than the effective working water surface.
E) The outlet of the inlet valve should be 20mm higher than the overflow pipe.
F) There should be no leakage in the drain valve.
G) When the effective water volume of the water tank is 6L, the drainage flow of the drain valve should not be less than 2.0L/s..
H) The service life is more than 50,000 times.
4.3.7 All parts of the water-saving toilet system (toilet, water tank and fittings, pipes, fittings, interfaces, etc.) shall comply with the provisions in GB/T 6952, JC 707 and JC/T 856, and there shall be no leakage at each joint after assembly.
4.3.8 The water-saving toilet system must comply with JC/T 856? Design, construction and installation of pipeline system according to 4.6 in 2000.
4.3.9 Other requirements for products shall comply with relevant provisions in GB/T 6952, JC707 and JC/T856.
4.4 Water-saving toilet flushing valve
4.4.1 When the water pressure is 0.3MPa, the product used for defecation flushing has a flushing volume of 6L ~ 8L at a time. The primary flushing volume of urine flushing products is 2L ~ 4L (if it is divided into two stages, it is the sum of the first stage and the second stage). The flushing time is 3s ~ 10s.
4.4.2 The strength of the valve body shall reach the pressure of 0.9MPa for 30s without deformation or leakage.
4.4.3 The sealing performance of the valve body shall be 0.6Mpa at high pressure and 0.04Mpa at low pressure respectively, and there shall be no leakage on all sealing surfaces and connecting surfaces.
4.4.4 The service life of the product shall be more than 50,000 times.
4.4.5 The product must have an anti-siphon device in use (this requirement is not considered for the urine flushing valve).
4.4.6 The product is not allowed to have obvious water hammer phenomenon in use, and the noise sound pressure level is not more than 60dB.
4.4.7 Other requirements for products shall comply with relevant regulations in JG/T 3040 and QB/T 3649.
4.5 water-saving shower
4.5.1 The outlet flow of the shower valve of the product shall comply with JG/T 3008? The provisions of 4.7 in 1993.
4.5.2 The shower nozzle should be under the water pressure of 0.1MPa and the pipe diameter of 15mm, and the maximum flow is not more than 0.15 L/s..
4.5.3 The compressive strength of the shower valve body should reach 1.5 times the nominal pressure of the product and keep the pressure for 30s, without deformation, cracking and leakage.
4.5.4 When the shower valve is naturally closed, water with 1.1 times the nominal pressure of the product is introduced, and there should be no leakage at the water outlet and valve stem seal. Seal the water outlet, and let the water with pressure of 0.1MPa pass through the water inlet, and there should be no leakage at the valve stem seal.
4.5.5 Public bathrooms should adopt single-tube thermostatic products.
4.5.6 The service life of the shower valve of the product shall be more than 50,000 times.
4.5.7 Other requirements for products shall comply with relevant regulations in JG/T 3008.
4.6 water-saving washing machine
4.6.1 The ratio of the rated washing water volume to the rated washing capacity of the product shall comply with GB/T 4288? The provisions of 5.4 in 1992.
4.6.2 The rinsing performance of the product shall be such that the alkalinity of the residual rinsing liquid phase on the washings for the test water is not greater than 0.04×10-2mol/L (molar concentration).
4.6.3 When the product is at the maximum load washing capacity, high water level and a standard washing process, the washing ratio is above 0.8, and the water consumption per unit capacity is not greater than the following values:
A) The drum washing machine has a heating device of 14L/kg and no heating device of 16L/kg;;
B) pulsator washing machine 22L/kg.
4.6.4 Other requirements for products shall comply with relevant provisions in GB/T 4288.
5 inspection method
5.1 Water-saving nozzle
5.1.1 Determination of flow rate
According to GB/T 18145? Test method of 7.4.3 in 2000.
5.1.2 Determination of primary water supply and water supply time of delayed self-closing nozzle
A) test device and instrument:
? Nozzle pressure testing machine (pressure and flow measurement accuracy 0.5).
? Stopwatch, measuring cylinder.
B) Test methods and steps:
? Install the time-delay self-closing water nozzle on the testing machine.
? Connect the water source, open the water tap, measure the water supply quantity and water supply time once with a simple dosage and a stopwatch, and take the average value for three times.
5.1.3 Detection of valve body strength
5.1.3.1 ceramic sealed water nozzle according to GB/T 18145? 7.4.1 in 2000.
5.1.3.2 non-ceramic sealed water nozzle according to QB/T 1334? 6.9 in 1998.
5.1.3.3 induction nozzle press CJ/T 3081? 7.3.1 in 1999.
5.1.4 Detection of sealing performance
5.1.4.1 ceramic sealed water nozzle according to GB/T 18145? 7.4.2 in 2000.
5.1.4.2 non-ceramic sealed water nozzle according to QB/T 1334? In 1998, the test was carried out as specified in 5.4.5.
5.1.4.3 induction nozzle press CJ/T 3081? 7.3.2 in 1999.
5.1.5 Switch life test
The service life of 5.1.5.1 ceramic sealed faucet switch is in accordance with GB/T 18145? In 2000, the regulations of 7.4.4.3 were tested.
The service life of non-ceramic sealed faucet switch in 5.1.5.2 is according to QB/T 1334? 5.4.5 in 1998 stipulated that the test should be carried out.
The service life of 5.1.5.3 induction water tap switch is in accordance with CJ/T 3081? In 1999, the test was carried out as specified in 7.2.4.
5.2 Water-saving toilet system
5.2.1 Test method
Connect the product to the water supply pipeline in use, turn on the flushing device under the condition that the static pressure is 0.14MPa and the dynamic pressure is not less than 0.10MPa, and check that there is no leakage in each connection part during a flushing cycle, and the water consumption can be adjusted to not more than 6L.
5.2.2 Flushing function
Under the conditions described in 5.2.l, carry out the following inspection.
5.2.2.1 solid emission inspection
100 φ 19mm polypropylene ball with bulk density of 0.85 g/cm3 ~ 0.90 g/cm3, put it gently into the toilet with full water seal, open the drain valve to flush with water, check and record the number of balls rushing out of the toilet, measure it three times in a row, and calculate the average number of balls rushing out of the toilet three times.
5.2.2.2 ink line test
Wipe the cleaning surface dry, draw a circle of ink lines along the cleaning surface 25mm below the toilet seat with a soft pen, flush immediately, and measure and record the length of ink lines remaining on the cleaning surface.
5.2.2.3 water seal depth and water seal recovery inspection;
A) the water seal depth shall be measured according to GB/T 6952? 6.7.1 in 1999.
B) water seal recovery measurement. During the solid discharge inspection (see 5.2.2.1), observe the water seal recovery after flushing, and if there is overflow at the sewage outlet, it indicates that the water seal is fully recovered. If there is no overflow, measure the remaining water seal depth and record it.
5.2.2.4 sewage discharge test according to GB/T 6952? 6.8 in 1999.
Test of conveying characteristics of drainage pipes in 5.2.2.5;
A) for the provisions of 4.3.3.2a), according to GB/T 6952? In 1999, the method specified in Appendix C was tested for 30 times, and the number of samples washed out each time, the total flushing water volume and the subsequent flushing water volume were recorded.
B) For the provisions of 4.3.3.3b), the inner diameter is φ 100mm drain pipe, the length of the drain pipe is 5m, and the downstream slope is 2.6%. When the toilet socket pipe is connected with the horizontal pipe, a 90 elbow is adopted, and the distance from the toilet outlet to the center of the horizontal pipe is 450mm. After the toilet products installed in use state are connected with the drainage pipe system without leakage, the toilet should be installed according to JC/T 856? Inspection specified in 5.1.6 in 2000.
The minimum pipe diameter of 5.2.2.6 trapway is tested according to GB/T 6952? In 1999, the provisions of the 6.7.2 for inspection.
5.2.3 The water absorption rate of the ceramic toilet is in accordance with GB/T 6952? The provisions of 6.5 in 1999 were tested.
5.2.4 The requirements of water tank fittings shall be inspected according to the relevant provisions of JC 707.
5.3 Water-saving toilet flushing valve
5.3.1 Determination of flow rate
A) test device and instrument:
? Flushing valve flow tester (pressure and flow measurement accuracy 0.5).
? Stopwatch, measurement Jane.
B) Test conditions: The pipe diameter specification of the water supply pipeline in front of the valve should take the previous specification size of the water inlet of the valve. The product specifications for the test are DN25, DN20 and DN15 respectively.
C) test methods and steps:
? Adjust the valve to the maximum flushing volume.
? Under the pressure of 0.3MPa, the flushing quantity and flushing time were measured for 3 times each, and the average value was taken.
5.3.2 Detection of valve body strength
A) Test device and instrument: flushing valve hydraulic strength tester (pressure measurement accuracy is 0.5) and stopwatch.
B) Test methods and steps:
? Connect the water inlet end of the valve with the water supply end of the testing machine according to the installation position of the valve.
? Close the disc, gradually increase the pressure to 0.9MPa, and maintain the pressure for more than 30s. Observe whether there is pressure drop on the pressure gauge, and check whether there is deformation and leakage on the valve body and joint. It is allowed to proceed with a single part.
? In case of pressurized leakage, allow the discharge to exhaust the residual gas in the valve before continuing the test.
5.3.3 Detection of sealing performance
A) Test device: flushing valve hydraulic sealing tester (pressure measurement accuracy is 0.5).
B) Test methods and steps:
? Install the valve at the water supply end of the testing machine according to the working state of the valve.
? When the pressure is 0.04MPa and 0.6MPa respectively, the flushing valve is drained, and there should be no leakage after self-closing. Repeat the opening and closing test for three times.
5.3.4 Life test
A) Equipment: Flushing valve life tester (pressure measurement accuracy is 0.5).
B) Test methods and steps:
Install the product to be tested on the testing machine, and connect the water supply pipeline. The water supply pressure is: dynamic pressure 0.3MPa, water temperature ≤ At 50℃, after opening the valve core and self-closing, one action is completed, and the strength and sealing performance of the valve body are tested after reciprocating for 50 000 times.
5.3.5 Anti-siphon test
A) Test equipment and devices: as shown in Figure 1.
B) test conditions:
? Flushing valve with upper sealing structure shall be padded with φ 0.4mm~φ 0.8mm wire.
? The length of the transparent flushing pipe is not less than 500mm, and the submerged part is 100mm.
C) test methods and steps:
? Start the vacuum pump to make the vacuum degree of the pressure supply system not less than 0.08MPa.
? Open the valve to communicate the flushing valve with the water storage tank.
? Open the valve and observe whether there is backwater in the flushing pipe, and record the backwater height (the liquid level of the transparent flushing pipe is not higher than the liquid level of the container by 300mm).
5.3.6 Noise test.
The product is installed according to the state of use, the sound pressure level of ambient noise is not more than 15dB, and the inlet pressure is 0.1MPa and 0.6MPa respectively, and the noise measured at the distance from the valve body lm and higher than lm is the maximum of two times.
5.4 water-saving shower
5.4.1 Determination of flow rate
The flow of shower valve made in 5.4.1.1 shall be determined according to CJ/T 3008? In accordance with the provisions of article 5.5 of 1993.
Determination of shower nozzle flow in 5.4.1.2
A) equipment: CJ/T 3008? Water passing test system shown in Article 5.1.2 of 1993.
B) Test methods and steps:
? Connect the shower nozzle and the water test system with a pipe with a diameter of 15 mm.
? The shower valve is opened by water supply, and the shower is in use.
? Adjust the water inlet pressure of shower nozzle to 0.1MPa.
? Determine the unit time flow value.
5.4.2 The compressive strength of valve body shall be tested according to CJ/T 3008? Article 5.6 of 1993 stipulates that.
5.4.3 The sealing performance of valve body shall be tested according to CJ/T 3008? Article 5.7 of 1993 stipulates that.
5.4.4 Life test
Test the service life of shower valve body according to CJ/T 3008? The provisions of article 5.8 of 1993.
5.5 water-saving washing machine.
5.5.1 The ratio of rated washing water volume to rated washing capacity shall be in accordance with GB/T 4288? The provisions of the 6.3 calculation in 1992.
5.5.2 The washing ratio shall be determined according to GB/T 4288? In 1992, the test method specified in Appendix A was carried out.
5.5.3 The rinsing performance shall be tested according to 4.6.2 of this standard and GB/T 4288? In 1992, the test method in Appendix C was carried out.
5.5.4 Determination of water consumption per unit capacity
Determine the washing ratio according to the provisions of 5.5.2. Under the condition that the rated washing capacity and the highest water level of the washing machine to be tested complete the washing, rinsing and dehydration washing processes set by a washing machine program, the water consumption per unit capacity is calculated by Formula (1):
W=W1/M… … … … (1)
Where: w? ? Water consumption per unit capacity, l/kg;
W1? ? Total water consumption in a standard washing process of washing, rinsing and dehydration, l;
M? ? Rated washing capacity of washing machine, kg.
6 inspection rules
6.1 Water-saving faucet (faucet)
6.1.1 The ceramic sealed water nozzle conforms to the provisions of GB/T 18145.
6.1.2 Non-ceramic sealed water nozzle meets the requirements of QB/T 1334.
6.2 The inspection rules of urinal, water tank and fittings in water-saving urinal system shall be in accordance with GB/T 6952, JC 707 and JC/T856.
6.3 Water-saving toilet flushing valve meets the requirements of QB/T 3649.
6.4 The inspection rules of shower valve body conform to JG/T 3008.
6.5 The water-saving washing machine conforms to the provisions of GB/T 4288.

How to troubleshoot RAID 5 in the server

How to troubleshoot RAID 5 in the server

  Due to the continuous progress of technology, different types of servers have different treatment methods after RAID 5 failure.

  At present, the network topology structure of large-scale application programs generally adopts C/S structure or B/S structure, and at least one server with a large database needs to be placed in the central computer room. Considering the security and reliability of the server, RAID (Redundant Array of Inexpensive Disks) is usually used for redundant backup of the server’s disks. Among them, RAID 5 array level is parity disk array without independent parity disk, which adopts data blocking and independent access technology, can process multiple access requests in parallel on the same disk, and allows any hard disk in the array to fail.

  In practical application, due to some inevitable objective reasons, some array failures may occur. The most common situation is that the hard disk automatically goes offline, and the online status is displayed as DDD (invalid disk drive), and the hard disk has physical or logical failure. If it is a physical fault, only the hard disk can be replaced; If it is a logical fault, it can be repaired by targeted technology to restore the online state of the hard disk, continue to maintain the striped distribution of the hard disk data in its original array, and continue the consistency of the data storage system.

  However, the data recovery of some old HP servers (such as HP LH6000) is different from that of new HP servers (such as HP ProLian series servers). Therefore, different servers handle RAID 5 failures differently. I have been in contact with the data failure of RAID 5 array card caused by unexpected power failure of two servers, and solved the problem by adopting different strategies.

How to troubleshoot RAID 5 in the server 1

Fault repair

  One is HP LH6000 server, and four 18GB hard disks are made into RAID 5 disk array, and its array card is NetRaid. The other is HP ProLian ML370 server. Four 146GB hard disks are made into RAID 5 disk array, and its array card is Smart Array 642 with Hot Spare hard disk. Both operating systems are Window 2000 and the database is Server 2000.

  The fault of HP LH6000 is as follows: one hard disk is flashing red light, and the machine is still running normally, but it will not be long before the system can not run normally, and then it is found that the red light of another hard disk is flashing.

How to troubleshoot RAID 5 in the server 2

The solution is as follows:

  1. start the server, and press Ctrl+M to enter the NetRaid management program when self-checking to the array. Check the array information and find that the hard disk status is Failed, and use the modified configuration to forcibly set a hard disk to OnLine. Restart the server, the hardware self-check before entering the system is invalid, and the startup fails.

  2. Start the server, and press Ctrl+M to enter the NetRaid management program when self-checking to the array. Select the disk array, manually Fail the hard disk that was originally hung OnLine, and then manually set another Failed hard disk to OnLine, and restart the server to enter the system.

  3. After checking that the system and database are running normally, enter the array configuration tool and manually set the Failed hard disk to Rebuild, and then restart the server after 100% reconstruction. All arrays and systems are restored to their original state.

  Another server running ERP system (HP ProLiant ML370) is configured as a RAID 5-level disk array by four 146GB hot-swappable hard disks through RAID cards (Smart array array cards). One of the hard disks suddenly broke down during operation. Server RAID 5 automatically enables the Hot Spare hard disk to logically replace the damaged hard disk. The data access task of the whole hard disk still runs completely in the original reading and writing process sequence, and the application program and database have no influence.

  Check the hard disk status through the ACU tool that comes with HP, and find that the hard disk with red light warning is offline. If there are two red lights on Raid 5 in HP ProLiant server, it indicates that the system has crashed and the database cannot be accessed, but the system will not shut down automatically. When the second hard disk is red, the data can’t be recovered by conventional means, so we have to pay a professional third-party data recovery company to recover the data.

How to troubleshoot RAID 5 in the server 3

  Therefore, for the old HP LH6000 series servers, the array design is quite different from that of the current HP ProLiant series servers. As far as the operation method is concerned, there are many options for the array operation method of HP LH6000 server, including deleting the array again and rebuilding it after the array fails, and the initialization is also manually selected. However, the initialization of HP ProLiant series server array is automatically performed in the background after the array is configured, so the ProLiant series server cannot reconfigure the array after an array error.

  The HP LH6000 server will cause the disks in the array to be disconnected for other unexpected reasons, so the maintenance personnel can manually choose Online or Offline, Rebuild, etc. to restore the data. However, the current HP ProLiant series servers will no longer have the phenomenon of disk disconnection in the array like the old servers, so when the hard disk is red, it is basically damaged and needs to be replaced. Of course, you can choose to Rebuild the hot-plug hard disk and see if the hard disk can be used for a while.

How to troubleshoot RAID 5 in the server 4

Do a good job of technical backup

  From the above two examples, it can be seen that the troubleshooting of Raid 5 disks of servers of the same brand and different series is different because of their different embedded technologies. But after Rebuild the data, the data was saved, from which the following experiences can be drawn:

  We believe that any advanced technical means is not foolproof. If you want to ensure data security, you must do a good job of backup, and it is best to do a remote backup of the database once a day. Spare at least one new hard disk. It should be pointed out that the hard disk that joins the array must be greater than or equal to the capacity of the failed hard disk.

How to troubleshoot RAID 5 in the server

  If conditions permit, the array creation scheme of "RAID 5+ hot spare" is recommended. This way, we have two chances to replace the hard disk before the data is lost. For general applications, only RAID 5 is needed, which can provide data access performance, reliability and maximum disk space at the same time.

  Administrators must always observe the status of the array, including the yellow warning light of the disk array and the drive status in the management software. Trouble shooting in time. No matter what level of array, data backup should be done before troubleshooting.

Entrepreneurship on the Road: Winning Brilliant Opportunities for Life

Implementing the innovation-driven development strategy and promoting "mass entrepreneurship and innovation" is a major deployment made by the CPC Central Committee. As for starting a business, we have heard the story that some entrepreneurs often raise millions of dollars and get rich overnight. Is it really that easy to start a business? It is also said that the success rate of starting a business is less than 1%, and a startup enterprise may face death if it is not careful. Is entrepreneurship really that terrible? The series report "Entrepreneurship on the Road" tells the ups and downs of these young people’s entrepreneurial stories.

Baoding Xu Shui: Meteorological service escort greenhouse onion planting

On February 18th, the service personnel of Xushui Meteorological Bureau in Baoding City, Hebei Province came to Beiqinggong Village, Zhengcun Town, to investigate the demand for meteorological services for onion planting, and to protect the characteristic industries.

Service personnel walked into the greenhouse, had in-depth communication with growers, understood the demand for meteorological services, and reminded growers to pay close attention to the latest meteorological forecast and early warning information in view of the recent low temperature and windy weather, so as to make greenhouse management more scientific and effective.

On February 18th, the meteorological service personnel of Xushui Meteorological Bureau inspected the growth of shallots. Li Anqi photography

Combined with the meteorological service demand learned this time, Xushui Meteorological Bureau will make special meteorological service materials and send them to growers through SMS, WeChat and other channels in time, so as to contribute meteorological power to increase agricultural production and farmers’ income.

(Author: Li Anqi Editor: Su Jessie)

Agricultural Science and Technology Helps Rural Revitalization

  Store grain in the ground, and store grain in technology. Today, agriculture is becoming a promising industry, and farmers are becoming attractive occupations.

  The autumn wind bursts, setting off layers of rice waves and bringing the fragrance of rice. Approaching the edge of the field, waist-high rice is neatly spread out and extends to the foot of the distant mountain. In the rice field, several harvesters are running at full power and the roar is endless. On the ridge of the field, farmers hold mobile phones to check the growth of rice and the progress of harvesting, and their faces are filled with the joy of harvest. When I came to the 68th regiment of Kekedala City, the fourth division of Xinjiang Production and Construction Corps, a picture of autumn harvest in full swing came to my eyes.

  The 68th regiment is located in Ili Valley, with fertile soil and abundant irrigation water. Thanks to superior natural conditions, the local area began to explore the cultivation of rice very early. However, due to the lack of advanced planting concepts and technical support, farmers have been exploring for a long time. The variety of rice in the field is mixed, and the height of rice seedlings is uneven, which is not only difficult to manage and protect, but also inefficient. Both the practical needs of increasing farmers’ income and the long-term overall situation of comprehensively promoting rural revitalization have put forward new and higher requirements for improving production technology.

  Store grain in the ground, and store grain in technology. With the help of modern production technology, local rice planting has embarked on the road of intelligent production. The intelligent agricultural system has made the days of "steaming the summer heat and rusting the country, burning the sun on the back" gone forever. With the help of modern information technology, every field and every seedling has been monitored all the time, and the information such as soil humidity, pH value and rice seedling growth can be seen at a glance. Through the big screen of smart agriculture, technicians can analyze the situation of water and fertilizer, pests and diseases according to the data fed back by remote sensing. Under the precise guidance of data, intensive cultivation, accurate fertilization and reasonable irrigation have replaced extensive management, and watering and fertilization can be completed by machinery without leaving home. From "looking up to heaven for dinner" to "looking up to heaven for management", the unique natural endowment of Yili River Valley is being transformed into the development advantage of rural revitalization.

  In the process of technology application, we are also faced with a task of coordinating agricultural production with environmental protection. For example, in Bole City, Xinjiang, in the past, planting corn had to go through fixed processes such as plowing and film mulching. When the wind blows over the newly turned land, it will raise dust all over the sky, and the broken plastic film will remain in the ground, which will not only be difficult to decompose, but also cause soil hardening. With the improvement of agricultural technology, farmers began to experiment with corn protective no-tillage technology. Not clearing the straw and plowing the land before cultivation not only reduces the loss caused by land ploughing, but also eliminates the use of plastic film, which not only saves a lot of costs, but also reduces land pollution and protects farmland and surrounding agricultural environment. Crops and land have achieved a virtuous cycle of planting in the middle and planting in the middle.

  The introduction of advanced agricultural technology has enabled farmers to see the broad prospects of agricultural development and stimulated the enthusiasm, initiative and creativity of production. At first, the popularization of corn conservation no-tillage technology was not smooth. A farmer planted 100 mu with the mentality of giving it a try. When harvesting, he found out that "the yield per mu is more than 100 kilograms, and the cost has dropped, and the 200 yuan per mu is at least increased", and finally he decided to adopt protective no-tillage technology. Since the beginning of this year, the local promotion area has exceeded 30,000 mu. At harvest time, looking at the full corn in the field, the local people smiled.

  From the foot of Tianshan Mountain to the Ili River, from desert oasis to vast grassland … … In more places in Xinjiang, agriculture has caught the express train of technological progress, production has become more and more convenient, and people’s lives have become more and more affluent. Today, agriculture is becoming a promising industry, and farmers are becoming attractive occupations. Better application of science and technology, agricultural science and technology to help rural revitalization, the pace towards agricultural and rural modernization will be more stable, and beautiful countryside, with strong agriculture, beautiful countryside and rich farmers, will gradually approach.

  (The author is editor of the review department of this newspaper)

  People’s Daily (October 14, 2021, 05 edition)

Sudden! Musk, respond urgently!

The latest news of the situation in Russia and Ukraine has attracted the attention of all parties.

On February 12, the Global Times quoted the US Wall Street Journal as reporting on February 11 that the General Intelligence Department of the Ukrainian Ministry of National Defense said on the same day that the Russian army was using the "Star Chain" system developed by SpaceX on a large scale at the front line. In response, SpaceX CEO Musk responded urgently, "Some false news said that SpaceX is selling’ Star Chain’ terminals to Russia. This is absolutely wrong. "

On February 12th, local time, the Kremlin responded that elon musk’s "Star Link" satellite Internet system was neither certified for use in Russia nor officially supplied to Russia, so it could not be used.

At present, Musk’s "Star Chain" business is welcoming a big outbreak. According to a source quoted by Bloomberg, it is estimated that SpaceX’s sales in 2024 will increase to about 15 billion US dollars, in which the sales of "Star Chain" business will exceed the launch business, and the number of users of satellite Internet service will exceed 40 million by 2025. SpaceX’s annual income can reach 30 billion US dollars, and the "Star Chain" project will become the most profitable business.

Musk responded urgently.

On February 12, the Global Times quoted the American Wall Street Journal as reporting on February 11 that the General Intelligence Bureau of the Ukrainian Ministry of National Defense said on the same day that the Russian army was using the "Star Chain" system developed by SpaceX on a large scale near the front line of the Russian-Ukrainian conflict, which might weaken a major battlefield advantage of the Ukrainian army.

According to the report, by using the "star chain" system, Ukrainian frontline troops can communicate safely with Internet applications, so that they can keep in touch without relying on mobile phones or radio signals that are more easily monitored by Russian troops.

Andrei Yusov, spokesman for the General Intelligence Department of Ukraine’s Ministry of National Defense, said that Russian troops are "systematically" using "Star Chain" terminals, which are used by Russian 83rd Air Assault Brigade and other troops, which are fighting near the towns of Cris Chivka and Andrevka in Donetsk region of eastern Ukraine.

The statement did not mention how the Russian army obtained these terminals, for example, whether they were purchased from abroad or seized from the Ukrainian army.

This is the first time Ukraine has issued an official statement on Russia’s alleged use of the Star Chain.

Later on December 11, local time, SpaceX CEO Musk responded urgently.

Musk responded that "some false news said that SpaceX is selling’ Star Chain’ terminals to Russia. This is absolutely wrong. "

Musk wrote on the social platform X: "As far as we know, no’ Star Chain’ terminal is directly or indirectly sold to Russia."

On February 12th, local time, the Kremlin also responded that elon musk’s "Star Link" satellite Internet system was neither certified for use in Russia nor officially supplied to Russia, so it could not be used.

Kremlin spokesman dmitry Peskov said in an interview: "This is not our certified system; Therefore, it cannot be officially supplied here, nor is it officially supplied. Therefore, it cannot be officially used in any way. "

Frequently involved in the Russian-Ukrainian conflict

The Global Times quoted The Wall Street Journal as saying that SpaceX had issued a statement on social platform X on February 8, local time, saying that the "Star Chain" satellite service could not be used in Russia, but did not explain whether this service could be used on the Russian-controlled side of the Russian-Ukrainian front line.

A SpaceX spokesperson did not respond to a request for comment on the 11th.

The report pointed out that although the "Star Chain" terminal could not be purchased in Russia, Ukrainian media reported that the Russian army had purchased the equipment in a third country and brought it to the front. In addition, the Russian army may have seized the "star chain" terminal from the Ukrainian army, so that it can access the "star chain" network. Although SpaceX has the ability to track the "Star Chain" users in a specific geographical location, it may be difficult for the company to determine whether the users are Russian or Ukrainian, especially in front-line areas.

The Wall Street Journal said that since Musk decided to provide "Star Chain" service for Ukraine after the outbreak of the Russian-Ukrainian conflict, the use of the "Star Chain" system has always been a politically charged issue.

According to the report, the "Star Chain" system is considered to be crucial to the actions of the Ukrainian army, so that when SpaceX said that it could no longer provide access funds for Uzbekistan in 2023, the US Department of Defense and other Ukrainian supporters were forced to agree to pay the fees to maintain the operation of the service.

In September 2023, Musk said that in the early days of the conflict, he rejected Ukraine’s request to start the "Star Chain" service near Sevastopol, Crimea, in order to avoid SpaceX’s direct involvement in Uzbekistan’s plan to attack Russian ships.

Gwen Shotwell, president of SpaceX, said at a meeting earlier that SpaceX had taken measures to restrict the use of the "Star Chain" system in Ukrainian military operations. She said at the time that the company did not intend to make the "star chain" a weapon.

"Star Chain" Outbreak

SpaceX is a space exploration technology company owned by Musk. Its main business includes orbital rocket launch, manned space flight and satellite Internet service. The satellite Internet service is the star chain service, which aims to provide high-speed Internet connection for users around the world through satellite network.

According to Bloomberg, which previously quoted people familiar with the matter, SpaceX’s revenue from rocket launch and starlink business in 2023 is estimated to be about 9 billion US dollars, and its sales are expected to increase to about 15 billion US dollars in 2024.

According to the report, it is estimated that the sales of "Star Chain" business will exceed the launch business in 2024, which will account for most of SpaceX’s total revenue. By 2025, the number of users of satellite Internet services will exceed 40 million, and SpaceX’s annual revenue will reach 30 billion US dollars. The "Star Chain" project will become the most profitable "Golden Bull" business.

Musk has been trying to use the "Star Chain" business unit as an important source of income to fund SpaceX’s capital-intensive projects.

It is reported that "Star Chain" is a low-orbit Internet constellation plan proposed by SpaceX in 2014, with the goal of building a space-based communication system with global coverage, large capacity and low delay, and providing high-speed Internet services on a global scale.

Statistics show that by the end of 2023, "Star Chain" has been applied in 65 countries, serving over 2.3 million users, an increase of over 1.3 million.

According to the latest report of Cloudflare, a network infrastructure company, compared with 2022, American traffic from "Star Chain" increased by more than 150% in 2023.

From a global perspective, according to the statistics of Cloudflare, the internet traffic in the world increased by 25% in 2023, while the traffic of "Star Chain" was twice as much as this data.

It is worth mentioning that in the past year, Musk has strengthened in-depth cooperation with the US military. The most striking thing is that SpaceX has specially created a service product called "Star Shield" for the US military, and in view of the good performance of "Star Chain" on the battlefield in Ukraine, the US Department of Defense also awarded SpaceX a contract worth 70 million US dollars in September 2023.

According to the contract, the Star Shield network will provide end-to-end services for the military through the Star Chain constellation, user terminals, auxiliary equipment, network management and other related services, and on the basis of the Star Chain data encryption service, the Star Shield has been added with additional encryption technology to ensure the security of data processing of the hosted payload, and SpaceX has become the first provider to provide low-earth orbit satellite services for the US military.

Original title: "Sudden! Musk, respond urgently! 》

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Shanghai: Self-developed super-large diameter shield machine completes the "first show"

On March 2nd, Shanghai Tunnel Youth Commando workers waved flags on the "Qiyue" to celebrate the successful reception of the shield project.

On the same day, the connecting line of Shanghai regional railway airport "Meifu Road Working Well-Huajing Station" was the first to run through, marking the successful completion of the "Qiyue" and "First Show" of the super-large diameter shield machine independently developed and manufactured by Shanghai Tunnel.

According to reports, the total length of the "Qiyue" is about 99 meters, of which the length of the main engine is about 16 meters, and the cutting diameter of the cutter head is 14.05 meters. In October 2020, the commissioning was completed. During the construction period, "Qiyue" successively passed through the high-voltage iron tower, the viaduct of Hongmei South Road and the subway line 15, ensuring the safety of various complicated water, gas, electricity and communication pipelines, and finally successfully completed the underwater reception in the receiving well of Huajing Station.

Xinhua News Agency reporter Fang Yushe

This is the "Qiyue" which was shot on March 2nd at the site of Shanghai regional railway airport connecting line project.

On the same day, the connecting line of Shanghai regional railway airport "Meifu Road Working Well-Huajing Station" was the first to run through, marking the successful completion of the "Qiyue" and "First Show" of the super-large diameter shield machine independently developed and manufactured by Shanghai Tunnel.

According to reports, the total length of the "Qiyue" is about 99 meters, of which the length of the main engine is about 16 meters, and the cutting diameter of the cutter head is 14.05 meters. In October 2020, the commissioning was completed. During the construction period, "Qiyue" successively passed through the high-voltage iron tower, the viaduct of Hongmei South Road and the subway line 15, ensuring the safety of various complicated water, gas, electricity and communication pipelines, and finally successfully completed the underwater reception in the receiving well of Huajing Station.

Xinhua News Agency reporter Fang Yushe

This is the "Qiyue" which was shot on March 2nd at the site of Shanghai regional railway airport connecting line project.

On the same day, the connecting line of Shanghai regional railway airport "Meifu Road Working Well-Huajing Station" was the first to run through, marking the successful completion of the "Qiyue" and "First Show" of the super-large diameter shield machine independently developed and manufactured by Shanghai Tunnel.

According to reports, the total length of the "Qiyue" is about 99 meters, of which the length of the main engine is about 16 meters, and the cutting diameter of the cutter head is 14.05 meters. In October 2020, the commissioning was completed. During the construction period, "Qiyue" successively passed through the high-voltage iron tower, the viaduct of Hongmei South Road and the subway line 15, ensuring the safety of various complicated water, gas, electricity and communication pipelines, and finally successfully completed the underwater reception in the receiving well of Huajing Station.

Xinhua News Agency reporter Fang Yushe

On March 2, the construction workers cleaned the foundation pit at the site of the Shanghai regional railway airport tie line project.

On the same day, the connecting line of Shanghai regional railway airport "Meifu Road Working Well-Huajing Station" was the first to run through, marking the successful completion of the "Qiyue" and "First Show" of the super-large diameter shield machine independently developed and manufactured by Shanghai Tunnel.

According to reports, the total length of the "Qiyue" is about 99 meters, of which the length of the main engine is about 16 meters, and the cutting diameter of the cutter head is 14.05 meters. In October 2020, the commissioning was completed. During the construction period, "Qiyue" successively passed through the high-voltage iron tower, the viaduct of Hongmei South Road and the subway line 15, ensuring the safety of various complicated water, gas, electricity and communication pipelines, and finally successfully completed the underwater reception in the receiving well of Huajing Station.

Xinhua News Agency reporter Fang Yushe

"Qiyue" was installed and debugged in the production workshop of Tunnel Machinery Manufacturing Branch in Pudong New Area, Shanghai (photo of drone, taken on October 15, 2020).

On the same day, the connecting line of Shanghai regional railway airport "Meifu Road Working Well-Huajing Station" was the first to run through, marking the successful completion of the "Qiyue" and "First Show" of the super-large diameter shield machine independently developed and manufactured by Shanghai Tunnel.

According to reports, the total length of the "Qiyue" is about 99 meters, of which the length of the main engine is about 16 meters, and the cutting diameter of the cutter head is 14.05 meters. In October 2020, the commissioning was completed. During the construction period, "Qiyue" successively passed through the high-voltage iron tower, the viaduct of Hongmei South Road and the subway line 15, ensuring the safety of various complicated water, gas, electricity and communication pipelines, and finally successfully completed the underwater reception in the receiving well of Huajing Station.

Xinhua News Agency reporter Fang Yushe

"Qiyue" was installed and debugged in the production workshop of Tunnel Machinery Manufacturing Branch in Pudong New Area, Shanghai (photo of drone, taken on October 15, 2020).

On the same day, the connecting line of Shanghai regional railway airport "Meifu Road Working Well-Huajing Station" was the first to run through, marking the successful completion of the "Qiyue" and "First Show" of the super-large diameter shield machine independently developed and manufactured by Shanghai Tunnel.

According to reports, the total length of the "Qiyue" is about 99 meters, of which the length of the main engine is about 16 meters, and the cutting diameter of the cutter head is 14.05 meters. In October 2020, the commissioning was completed. During the construction period, "Qiyue" successively passed through the high-voltage iron tower, the viaduct of Hongmei South Road and the subway line 15, ensuring the safety of various complicated water, gas, electricity and communication pipelines, and finally successfully completed the underwater reception in the receiving well of Huajing Station.

Xinhua News Agency reporter Fang Yushe

Title map.jpg

See three wonderful metaphors to understand why the general secretary is concerned with scientific and technological innovation.

  On the afternoon of April 10th, General Secretary of the Supreme Leader visited Yazhouwan Seed Laboratory and Sanya Ocean Research Institute of China Ocean University successively in Sanya, Hainan Province, to learn about Hainan’s support for seed industry innovation and the development of marine science and technology.

  Standing at a new historical starting point, "China’s economic and social development and improvement of people’s livelihood need scientific and technological solutions more than ever before, and it is even more necessary to enhance the first driving force of innovation."

  Since the 18th National Congress of the Communist Party of China, the General Secretary of the Supreme Leader has visited the frontier of scientific and technological innovation for many times, and expounded the great strategic significance of scientific and technological innovation with vivid metaphors for many times.

  "This ‘ Gold pole ’ I understand it as agricultural modernization. "

  General Secretary of the Supreme Leader once told such a story. At that time, he was hungry and asked the people around him, what kind of life do you think is the best, and what are the specific goals? Try harder and think boldly about what is higher. "Their answer is — — I will carry a gold pole when I go up the mountain to work in the future! " "This ‘ Gold pole ’ I understand it as agricultural modernization. " The words of the Supreme Leader’s General Secretary contain true feelings.

  "To solve the problem of eating, the fundamental way out lies in technology." The "golden pole" bears the farmers’ "money bag" at one end and the people’s "rice bag" and "vegetable basket" at the other. Agricultural modernization is based on seeds. "A seed can change a world, and a technology can create a miracle." The General Secretary of the Supreme Leader pointed out that we should make up our minds to develop the national seed industry, pay close attention to cultivating excellent varieties with independent intellectual property rights, and ensure national food security from the source. During this inspection in Hainan, the General Secretary made a special trip to Yazhouwan Seed Laboratory. Yazhouwan Seed Laboratory, established in May 2021, as a public scientific research platform built by Sanya Yazhouwan Science and Technology City, relies on and serves the national Nanfan Scientific and Research Breeding Base, and is guided by seed innovation and seed industry development, helping the high-quality innovation and development of seed industry in China.

  General Secretary of the Supreme Leader profoundly pointed out, "Only by combining scientific and technological achievements with national needs, people’s requirements and market demand and completing the triple jump from scientific research, experimental development and popularization and application can we truly realize innovation value and realize innovation-driven development."

  At the symposium of scientists in September 2020, the general secretary pointed out that "accelerating scientific and technological innovation is the need to realize people’s high-quality life" and "in order to meet people’s yearning for a better life, more scientific and technological innovations involving people’s livelihood must be introduced". It is on this occasion that the general secretary put forward new requirements for the vast number of scientists and scientific and technological workers to "face people’s lives and health." During the "Thirteenth Five-Year Plan" period, China has made a number of major scientific and technological achievements in the field of people’s livelihood science and technology. Integrated whole-body positron emission/magnetic resonance imaging equipment, rice breeding accelerators in unmanned plant factories and other scientific and technological innovations for people’s lives and health have been continuously unveiled and applied to a better life.

  "Scientific and technological innovation, like a lever to incite the earth, can always create unexpected miracles."

  In June, 2014, at the 17th Academician Conference of China Academy of Sciences and the 12th Academician Conference of China Academy of Engineering, General Secretary of the Supreme Leader pointed out: "Scientific and technological innovation, like a lever to shake the earth, can always create unexpected miracles. The development of contemporary science and technology fully proves this process. "

  Scientific and technological innovation makes the deep sea no longer mysterious. In April, 2018, General Secretary of the Supreme Leader visited the Institute of Deep Sea Science and Engineering of China Academy of Sciences in Sanya, Hainan, to learn about China’s first 10,000-meter seabed exploration in the Mariana Trench, and went into the exhibition area of deep-sea exploration equipment with great interest to see all kinds of deep-sea diving high-tech equipment.

  Technological innovation makes space no longer far away. Just last month, the second class of "Tiangong Classroom" was held in China Space Station, and the astronauts of Shenzhou XIII gave another wonderful space science class. During more than 170 days of space flight, three astronauts, with the support of ground technicians, carried out a number of scientific and technological experiments and application projects, setting many "firsts" and "firsts".

  Scientific and technological innovation is the strategic support to improve social productivity and comprehensive national strength. Since the 18th National Congress of the Communist Party of China, the CPC Central Committee with the Supreme Leader as the core has made a major strategic choice of "innovation must be the first driving force for development" and implemented the innovation-driven development strategy.

  "Life Gate", "Bull’s Nose", "Heaviest Weapon of the Country", "Fixed Sea Needle" and "Unique Weapon" … … Nowadays, China has started a new journey of building a socialist modern country in an all-round way, and the position of scientific and technological innovation in the overall development of the party and the country is more prominent.

  "Innovative achievements should benefit the whole world, and should not become treasures buried in caves."

  In November 2019, when the Chairman of the Supreme Leader met with foreign representatives attending the 2019 Innovation Economic Forum, he pointed out that "no country can become an independent innovation center or enjoy innovation results exclusively. Innovations should benefit the whole world and should not be a treasure buried in a cave. "

  Fungus and grass technology, which has been popularized in more than 100 countries around the world, is a dazzling treasure out of the cave. With the long-term concern of the Supreme Leader, the fungus-grass technology of "replacing wood with grass" has gone out of China from Fujian to the world, which has played an important role in promoting local development and people’s well-being, and has been widely welcomed by developing countries.

  "China is willing to work with all parties concerned to continue to contribute China’s wisdom and China’s plan for the implementation of the UN’s 2030 Agenda for Sustainable Development, so as to make mushroom technology benefit the people of developing countries ‘ Happy grass ’ !” In September last year, the Chairman of the Supreme Leader pointed out in his congratulatory letter to the 20th anniversary of foreign aid to fungi and grasses and the International Cooperation Forum for Sustainable Development.

  The world today is experiencing a great change that has never happened in a hundred years, and the domestic and international environment facing China’s development has undergone profound and complex changes. In the face of fierce international competition and against the background of rising unilateralism and protectionism, General Secretary of the Supreme Leader is far-sighted: "Scientific and technological achievements should benefit all mankind, and should not be a means to restrict or contain the development of other countries."

  China’s scientific and technological innovation, not alone, nor narcissistic. "Promoting sustainable development through scientific and technological innovation has become the only way to solve some important global issues of concern to all countries." "We have expanded open cooperation in the field of science and technology, actively participated in solving major challenges facing mankind, and worked hard to promote scientific and technological innovations to benefit more countries and people." … … China’s scientific and technological innovation has conveyed China’s wisdom and contributed to China’s plan, which is promoting mutual benefit and sharing, unity and cooperation among all countries, creating a bright future together, and making continuous progress towards building a community of human destiny.

  Coordinator: Cui Shixin

  Written by: Wu Shan

  Planning: Du Shangze

  Editor: Summer Xu

  Image source: Xinhua News Agency (photo: Yan Yan, visual: Lai Xiangdong, Bi Xiaoyang)

Mercedes-Benz EQE 500 4MATIC pure electric car goes on the market: dual-motor four-wheel drive, with a battery life of 681 kilometers and 478,000 cars.

On November 15th, Mercedes-Benz announced the official launch of the new EQE 500 4MATIC pure electric car at 2024, and launched three models with the price range of 478,000 to 627,000 yuan. The exterior design of the new car is similar to that of the current car, with a closed night star grid, a body size of 4969/1906/1509 mm and a wheelbase of 3120 mm. In terms of configuration, the new EQE 500 4MATIC has added high-efficiency heat pump, star emblem dynamic welcome light, 3-year unlimited flow 5G network and airbag in the middle of the front seat. In terms of power system, the new EQE is fully upgraded with front and rear dual motors and four-wheel drive system. The maximum power of the front motor is 135 kW, the maximum power of the rear motor is 215 kW, and the acceleration time is 4.9 seconds. Matching the 96.1 kWh lithium battery pack, the pure electric cruising range can reach up to 681 kilometers.

Jinan FAW-Volkswagen CC is on sale at a special price, with a maximum profit of 52,000 yuan! Act quickly.

[car home Jinan Preferential Promotion Channel] is carrying out preferential promotion activities. At present, it can enjoy a maximum discount of 52,000 yuan in Jinan, and the minimum starting price is only 172,900 yuan. If you are interested in buying, please click "Check the car price" in the quotation form to get a higher discount.

济南地区一汽-大众CC特价出售,最高让利5.2万!赶快行动

The design of FAW-Volkswagen CC shows the perfect combination of movement and elegance. The front face adopts a family-style design language, and the air intake grille is wide and smooth, which enhances the overall visual impact. The body lines are simple and dynamic, creating a sporty atmosphere. The overall style is fashionable and atmospheric, which shows the unique personality of CC.

济南地区一汽-大众CC特价出售,最高让利5.2万!赶快行动

FAW-Volkswagen CC shows a spacious interior space with its body length of 4865mm, body width of 1870mm, body height of 1459mm and wheelbase of 2841mm. The lines on the side of the car are smooth and dynamic, and the coordination ratio of the front wheel track of 1586mm and the rear wheel track of 1572mm gives it excellent driving stability. Tyre size equipped with 245/45 R18 and exquisite 18-inch wheels further enhance the sense of movement and luxury of the vehicle.

济南地区一汽-大众CC特价出售,最高让利5.2万!赶快行动

The interior design of FAW-Volkswagen CC is full of modernity and luxury. Exquisite leather /Alcantara seats are used in the car to provide a comfortable ride. The front seats are equipped with heating function to provide passengers with a warm and comfortable driving environment. The steering wheel is wrapped in leather, which feels delicate and supports manual adjustment up, down and forward to meet the needs of different drivers. The central control screen is 9.2 inches. With the voice recognition control system, functions such as multimedia system, navigation, telephone and air conditioning can be easily controlled. The front row and the rear row are equipped with multiple USB and Type-C interfaces respectively, which is convenient for passengers to charge and transmit data. The rear seats can also be laid down in proportion to provide more storage space. Generally speaking, the interior design of FAW-Volkswagen CC pays attention to both comfort and practicality.

济南地区一汽-大众CC特价出售,最高让利5.2万!赶快行动

FAW-Volkswagen CC is equipped with a 2.0T 186 horsepower L4 engine, with a maximum power of 137kW and a maximum torque of 320 N m. With the 7-speed wet dual-clutch gearbox, it provides excellent performance and driving experience for the vehicle.

Car home car owners spoke highly of FAW-Volkswagen CC. The appearance design of the new car is impressive. From the front face, it feels that the car is wide and low, which is very stylish. The streamlined side design, especially the slip back design at the back, is particularly eye-catching. The wheel hub design is also excellent, which is in harmony with the car body. The gun gray tone adds texture and eliminates the trouble of later replacement. In addition, the owner also mentioned the hidden opening mode of the trunk, which was difficult for many friends to find when they first used it, which also added a lot of interest to the vehicle.