英语词汇“ball valve”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	ball valve
释义	ball valve noun 1. : a valve in which a ball fits into a spherical seat and regulates the aperture by its rise and fall due to fluid pressure, to a spring, or to its own weight 2. : ball cock
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