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What do you mean by checking?
Check, pronounced jiao hé, a Chinese word, means proofreading and checking.

Shu Xincheng's "Strive for a High Level of Cihai": "In the process of going to press, the proof is sent to the writing unit for verification and revision again."

Huacheng 1984No. 1 Issue: "As the technical director of the detachment, he should personally check the core and catalogue."

1. Based on the experiment, the thermal balance is checked and the error source is analyzed.

Secondly, the interference check, channel connection and component shape check methods in integrated block design are introduced into the integrated environment, so that the results of human-computer interaction design can be tested in time.

Third, check the bending safety factor and torsion safety factor of crankshaft.

Fourthly, this paper also checks the strength of the front and rear vertical plates of the lower beam of the bending machine frame.

Fifth, the system can realize the automation of roller chain transmission design and check, and the automation of drawing, and can realize the integration of design and drawing.

6. It is very important to check the residual strength of crankshaft in the process of crankshaft repair, and it is very reliable to repair it combined with Dongshi non-etching iron plating process. Taking the repair of a crankshaft as an example, the iron plating repair process and the strength check calculation of crankshaft are introduced.

7. Check and check the strength of the bucket belt.

8. Therefore, it is necessary to check the strength of the preliminary designed turntable, and improve the structure and optimize the design for the weak areas.

9. The fatigue strength of the spindle under cyclic load is checked, which provides a reliable theoretical basis for the failure analysis and optimal design of the spindle.

On this basis, the fatigue strength of the maximum alternating stress value is checked, which shows that the hub is safe and reliable during the normal service period of the motorcycle.

It is of great significance to master the design and checking calculation method of direct air-cooled condenser in thermal power plant and analyze its performance for improving the design and operation level of direct air-cooled units in China.

Twelve, through the test verification, it provides a new idea for the design and verification of double-layer and multi-layer U-shaped expansion joints in the future.

Thirteen, according to the stress analysis design method to check the flange; Based on the calculation method of PVRC tightness, the relationship between external bending moment and joint tightness is correlated with gasket stress as the criterion.

Check installation data records, make inspection reports and RTG certificates, and hand them over to users.

Fifteenth accuracy verification of measuring instruments is the premise to ensure the accuracy of measurement. Accuracy inspection can be divided into probe inspection and rotating shaft inspection, and probe, rod and reset parameters can be corrected through probe inspection.

Sixteen, by satisfying the stability condition and introducing the reduction factor of allowable stress range, the checking condition of secondary stress can prevent plastic fatigue and elastic fatigue damage at the same time.

Therefore, the latter is also very necessary for designers, because the simplified method can not only be used as a means of estimation in preliminary design, but also be used to check the computer results qualitatively in construction drawing design.

Eighteen, design and calculate the building load, air distribution, air duct and water pipe resistance, etc. , and check whether the selected equipment meets the requirements.

19. In view of the needs of the development of Qinhuangdao Port, our school calculated the design water level and check water level of the port according to the tidal data measured in the port for many years.

20. The mathematical model of hydraulic condition of annular pipe network is established, and the check formula of pressure head for limited heating is given.