“Sprengel pump”的概念、定义、翻译、参考文献-科学参考

单词	Sprengel pump
释义	Sprengel pump [`spreŋ·gǝl ´pǝmp] ^{MECHANICAL ENGINEERING} An air pump that exhausts by trapping gases between drops of mercury in a tube.
随便看	proportion proportional band proportional control proportional controller proportional counter proportional counter tube proportional dividers proportional elastic limit proportional ionization chamber proportional limit proportional navigation proportional parts proportional-plus-derivative control proportional-plus-integral control proportional-plus-integral-plus-derivative control proportional reducer proportional region proportional spacing proportional-speed control proportioning probe proportioning pump proportioning reactor proposition propositional algebra propositional calculus

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