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Semi truck driving through mountain road

Plastic pump maintenance and repair

(1) Check the plastic pump pipe and joints with loose phenomenon. Rotate the plastic pump by hand to see if the plastic pump is flexible. (2) Add bearing lubricating oil to the bearing body, observe the oil level should be at the center line of the oil standard, lubricating oil should be replaced or

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Semi truck driving through mountain road

Sampling and Testing in Comprehensive Evaluation of Soil Moisture

In the comprehensive evaluation of soil moisture in a certain area, there are usually three steps: soil sampling, soil moisture measurement analysis, soil moisture evaluation standards and methods. The instruments involved include: soil analyzers, soil moisture meters and other scientifi

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Semi truck driving through mountain road

Muffler performance evaluation

The performance of the muffler can be evaluated from the following three aspects: (I) Muffler performance, namely the muffler volume and spectrum characteristics. The amount of muffler muffler is usually expressed in terms of acoustic loss and insertion loss. In the field test, it can also be exp

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