positive-displacement pump

基本解释

• 正排量泵
• 容积式泵

英汉例句

双语例句

• Twin-screw pump as a positive displacement pump, pump room exhaust inhalation chamber should be strictly separated.
  双螺杆泵作为一种容积式泵，泵内吸入室应与排出室严密地隔开。
• It is a positive displacement vacuum pump, which can pump gas by rotating slide valve to change cubage of gas- absorbing cavity.
  它是通过滑阀转子作机械旋转运动从而改变吸气腔容积以达到抽气目的的容积式真空泵。

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词组短语

短语

• positive -displacement seawater fresh water pump 容积式海水泵
• double -stage positive displacement vacuum pump 双级结构容积式真空泵
• positive displacement oil -sealed liquor pump 油封式正位移式打液泵
• diaphragm -type positive displacement metering pump 隔膜型正排量计量泵

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专业释义

机械工程

• 容积式泵