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- The metering of natural gas still presently depends on orifice flowmeter,one of differential pressure flowmeters. 天然氣計量現在仍以差壓式流量計中的孔板流量計為主。
- Pressure and differential pressure tap orientation shall follow the same requirements as given for orifice flange taps in Appendix I. 壓力和差壓接頭方嚮應滿足與附件I關於孔板法蘭的相同要求。
- In these cases orifice plates or other differential pressure producing elements with differential pressure transmitters shall be considered. 在這種情況下，應使用流量孔板或配有差壓變送器的其它差壓元件。
- 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. 目前對油田伴生氣的計量基本上都是採用標準孔板節流裝置配用CWD - 4 30雙波紋管差壓計來進行計量。
- Gage pressure is a special case of differential pressure. 計示壓力是差壓力的一種特殊情況。
- 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. 孔板導壓管、文丘里管和流量管嘴的管線位置，應使差壓儀錶和儀錶導壓管具有足夠的通道和安裝空間。
- 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. 討論在測量易結晶介質的壓力 (差壓 )時 ,減少沖洗水影響的具體方法 ,探討沖洗水節流孔板孔徑的簡單計算方法。
- 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. 其它差壓流量元件（如文丘里、流量管嘴等）的取壓口方位，一般來講，應和流量孔板的要求一樣，具有相同的方位。
- The big LED-display shows the actual differential pressure. 大LED顯示屏顯示了實際差壓值。
- The maximum differential pressure across the valve seat. 通過閥門閥座的最大壓差。
- Elbow flowmeter is one version of differential pressure flowmeters. 彎管流量計是差壓法流量計的一種。
- Bell gages may be used to measure gage pressure or differential pressure. 浮鍾式壓力計可以用來測量計示壓力或差壓力。
- Record this as the opening differential pressure of the relief valve. 將此讀數記錄為安全閥開啟壓差。
- Wedging actions help affect a tight seal in low differential pressure services. 楔形的作用有助於在低壓差應用中產生緊密的密封。
- Requirement: Differential pressure across check must be 1.0 PSID or above. 要求：通過止回閥的壓差必須在1.;0PSID及以上。
- Calculations for differential pressure level transmitters shall be carried out. 應進行差壓液位變送器的計算。
- Measure and record the differential pressure across the valve in the throttled position. 測量和記錄通過處於節流位置的閥門的壓差。
- A mouse ran out from the dark orifice of the cave. 一隻老鼠從黑暗的洞口跑出。
- Optional accessories: differential pressure manometers; indicator (gauge),pressure transmitters, level transmitters; and automatic purge drains. 選配輔助組件:壓差器;顯示器(壓力計)，壓力感測器，液位感測器;和自動排放系統。
- Measure and record the differential pressure across the valve using a Watts Series PG meter. 採用美國瓦茨系列pg儀器測量和記錄通過閥門的壓差。警告：應該使用安全眼鏡。
