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

单词	butterfly valve
释义	Word Frequency butterfly valve noun 1. a disc that acts as a valve by turning about a diameter, esp one used as the throttle valve in a carburettor 2. a non-return valve consisting of two semicircular plates hinged about a common central spindle
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