1. 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。
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2. A differential pressure gauge is recommended for test no. 1 rather than a manometer for the following reasons: It utilizes minimum time to perform the test.
对于检测1，建议采用差压表，而不要采用流体压力表，理由在于差压表进行检测的时间最短。
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3. Lastly, the paper USES SIMULINK to the compare differences between the nonlinear and linear manometerdifferential equation.
最后利用SIMULINK比较了非线性与线性流体压强计微分方程。
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4. 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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5. 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.
