物理仪器，用来测量两点之间的压力差，
... 压力传感器electrical pressure transducer 压差计differential pressure instrument 液位计liquid level measuring instrument ...
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压差计(Differential pressure gauge)：斜臂式压力表或者同级装备，用于量测皮托管速度压差7.计量体系：包孕抽气机、温度感应器、体积丈量误差在±2%之内之干式气体流量...
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... differential equation of d'alembert lagrange达朗贝尔 拉格朗日微分方程 differential gage压差计 differential manometer差压计 ...
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.L）Noisedb（a）46-5248-5446-52选择品Option—压差计（Differential draft gauge）遥控器（Remote conteol）吸入口法兰（Duct flange for suction air）初效过滤器（Pre-filter） ..
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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.
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