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汉语拼音：yā chā

体系内两点间的压力差，例如井底和井口的压力差、孔口两边的压力差等。

压差 [yā chà]

• Requirements: Valve must be tight against reverse flow under all pressure differentials.

  要求: 在所有压差下,阀门对于回流的密封必须紧密.

• The adsorption tower of the Arene Plant of Sinopec Yangzi Petrochemical Co.

  扬子石化芳烃厂吸附塔出现床层压差偏高的问题.

• Bevel gear actuators are recommended when pressure exceeds limits shown.

  果压差超过所列的极限值,则建议采用锥齿轮执行器.

• Requirements: Valve must be tight against flow under all pressure differentials.

  要求: 在所有压差下,阀门对于回流必须密封紧密.

• Note pressure differential and enter flow rate chart at pressure differential noted.

  注意所标注的压差和对应压差的进口流量表.

• High porosity, high air permeability and low pressure drop.

  高孔隙率, 高透气度,压差低.

• Therefore, the optimum technologic parameters in vacuum differential pressure casting were obtained.

  得出了真空压差铸造法的最佳充型工艺参数.

• 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.

• Note: it is important the differential reading drop slowly.

  注意: 重要的是压差读数慢慢下降.

• Maximums are based on the operating force for each valve size.

  这种最大压差值是根据每个通径阀门的操作力计算的.

• Service conditions - line media, temperature, and maximum operating differential pressure.

  应用环境 - 管路流体介质, 温度和最大工作压差.

• Maximum differential ( shut - off ) pressure.

  最大 ( 关闭 ) 压差.

• The maximum differential pressure across the valve seat.

  通过阀门阀座的最大压差.

• After memory is set, disconnect differential gauge.

  记忆设置后, 断开压差表.

• Direct - drive , semihermetic screw compressor for high reliability.

  螺杆压缩机采用压差给油,更加安全可靠.