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单词 ball valve
释义

ball valvenoun

a one-way valve consisting of a ball that rests inside a cylindrical seating over a hole and rises and falls by means of a spring, its own weight, or pressure of gases or liquids

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英语词典包含66266条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

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更新时间:2026/6/4 22:03:06