... differential type relay 差动式继电器 differential U tube 差示U形管 differential ultrasonic velocimeter 差示超声测速仪 ...
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differential U-tube manometer 差分式U形管压力计
U tube differential gage U 管差压计
Gage U-tube differential U管差压计
The precision of liquid column manometer was described. The correct use method and error correction of U tube manometer and double tube differential pressure gauge were analysed.
叙述了液柱式压力计的精度，对U形管压力计和双管差压计的正确使用方法及误差修正做了简要分析。
The presentation of usage of liquid column manometer. The correct use method and error correction of U tube manometer and double tube differential pressure gauge were analysed.
主要介绍了液柱压力计的正确使用方法和误差分析。给出了U 型管压力计和双管差压计的测量精度。
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