“positive-displacement pump”的概念、定义、翻译、参考文献-科学参考

单词	positive-displacement pump
释义	positive-displacement pump [`päz·ǝd·iv dis¦plās·mǝnt ´pǝmp] ^{MECHANICAL ENGINEERING} A pump in which a measured quantity of liquid is entrapped in a space, its pressure is raised, and then it is delivered; for example, a reciprocating piston-cylinder or rotary-vane, gear, or lobe mechanism.
随便看	elliptic integral elliptic integral of the first kind elliptic integral of the second kind elliptic integral of the third kind ellipticity elliptic paraboloid elliptic partial differential equation elliptic point elliptic spring elliptic type elliptic wedge elliptocytosis ellsworthite elm Elmidae El Niño elongation elongation factor Elopidae Elopiformes elpasolite light-activated silicon controlled switch light adaptation light amplification by stimulated emission of radiation light amplifier

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