排量泵 meaning in English

displacement pump

Hydraulic fluid power . positive displacement pumps and motors
液压流体动力.正排量泵和电动机的测定
Specification for rotary positive displacement pumps , commercial ships use
商用船只旋转式正排量泵规范
Reciprocating positive displacement pumps and pump units - technical requirements
往复式正排量泵和泵装置.技术要求
Standard specification for rotary positive displacement pumps , commercial ships use
商业船用旋转式正排量泵标准规范
Reciprocating positive displacement pumps and pumps units - technical requirements
往复式正排量泵和泵装置.技术要求

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