要安装供气失效的警报系统，在压差重要的区域之间，要安装压差计。
A warning system should be provided to indicate failure in the air supply. Indicators of pressure differences should be fitted between areas where these differences are important.
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 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.
介绍了一种以单片机为基础的差压式水位计的智能化技术改进方法。
Based on the single chip microprocessors, an intelligent technical improvement method for the pressure difference water level meter is presented.
差压计锻件可以采用普通开式模锻成形和可分凹模多向闭塞精密模锻成形。
The differential gauge forging can be made by general open die or horizontal split precision closed die.
注意：重要的是，差压计的指针要慢慢下降。
Note: it is important that the differential gauge needle drops slowly.
根据气体状态方程和平衡方程，推导出在某点真空表反映的真空度值与孔压计反映的孔压差的理论关系式。
The theoretical formula about vacuity in vacuum tube and pore-water pressure at the observation point was obtained in this paper by using equation of gas state and equilibrium equation.
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。
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.
在高温高压容器中采用差压式水位计测量水位的方法，通常由于容器中介质密度的变化给测量带来很大误差。
When a differential pressure water - level gauge is used to measure the water - level in the vessel, large uncertainty can be induced because of the change of media density in the vessel.
本文推荐一种适合泵站单泵测流的笛形管——差压计测流方法。
This paper recommends a method of measuring flow by the flute pipe-pressure difference gauge, which is suited to measure flow at pumping station.
减小了汽包差压水位计测量误差。
The measure error of drum differential pressure water level gauge is reduced now.
减小了汽包差压水位计测量误差。
减小了汽包差压水位计测量误差。
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