英语词汇“drop 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	drop valve
释义	WordReference Random House Unabridged Dictionary of American English © 2024 drop′ valve′, Mechanical Engineeringa valve, as for a steam engine, that drops freely to close.
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