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- The metering of natural gas still presently depends on orifice flowmeter,one of differential pressure flowmeters. 天然气计量现在仍以差压式流量计中的孔板流量计为主。
- Pressure and differential pressure tap orientation shall follow the same requirements as given for orifice flange taps in Appendix I. 压力和差压接头方向应满足与附件I关于孔板法兰的相同要求。
- In these cases orifice plates or other differential pressure producing elements with differential pressure transmitters shall be considered. 在这种情况下，应使用流量孔板或配有差压变送器的其它差压元件。
- At present,the measurement of associated gas is basically made by using standard orifice control device together with CWD-430 differential pressure guage with double-ply bellows. 目前对油田伴生气的计量基本上都是采用标准孔板节流装置配用CWD - 4 30双波纹管差压计来进行计量。
- Gage pressure is a special case of differential pressure. 计示压力是差压力的一种特殊情况。
- The line location for orifice runs, venturi tubes and flow nozzles shall allow sufficient access and space for installation of differential pressure instruments and instrument piping. 孔板导压管、文丘里管和流量管嘴的管线位置，应使差压仪表和仪表导压管具有足够的通道和安装空间。
- A concrete method about reducing the influence of wash water when measuring the pressure(differential pressure) of easy crystal medium is discussed. A simple calculation method of wash water orifice size is discussed too. 讨论在测量易结晶介质的压力 (差压 )时 ,减少冲洗水影响的具体方法 ,探讨冲洗水节流孔板孔径的简单计算方法。
- Tap orientation for other differential pressure producing flow elements (such as venturis, flow nozzles, etc) shall, in general, follow the same orientation requirements as for orifice plates. 其它差压流量元件（如文丘里、流量管嘴等）的取压口方位，一般来讲，应和流量孔板的要求一样，具有相同的方位。
- The big LED-display shows the actual differential pressure. 大LED显示屏显示了实际差压值。
- The maximum differential pressure across the valve seat. 通过阀门阀座的最大压差。
- Elbow flowmeter is one version of differential pressure flowmeters. 弯管流量计是差压法流量计的一种。
- Bell gages may be used to measure gage pressure or differential pressure. 浮钟式压力计可以用来测量计示压力或差压力。
- Record this as the opening differential pressure of the relief valve. 将此读数记录为安全阀开启压差。
- Wedging actions help affect a tight seal in low differential pressure services. 楔形的作用有助于在低压差应用中产生紧密的密封。
- Requirement: Differential pressure across check must be 1.0 PSID or above. 要求：通过止回阀的压差必须在1.;0PSID及以上。
- Calculations for differential pressure level transmitters shall be carried out. 应进行差压液位变送器的计算。
- Measure and record the differential pressure across the valve in the throttled position. 测量和记录通过处于节流位置的阀门的压差。
- A mouse ran out from the dark orifice of the cave. 一只老鼠从黑暗的洞口跑出。
- Optional accessories: differential pressure manometers; indicator (gauge),pressure transmitters, level transmitters; and automatic purge drains. 选配辅助组件:压差器;显示器(压力计)，压力传感器，液位传感器;和自动排放系统。
- Measure and record the differential pressure across the valve using a Watts Series PG meter. 采用美国瓦茨系列pg仪器测量和记录通过阀门的压差。警告：应该使用安全眼镜。
