英语词汇“nonreturn valve”的翻译、意思、用法、释义-英汉汉英词典

单词	nonreturn valve
释义	nonreturn valve ＝ check valve 以上来源于：《21世纪大英汉词典》 nonreturn valven.=check valve详细释义源自:《新世纪英汉大词典》Collins外研社 n= check valvenonreturn valve止回閥機械工程
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