英语词汇“needle 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	needle valve
释义	WordReference Random House Unabridged Dictionary of American English © 2024 nee′dle valve′, [Mach.] Mechanical Engineeringa valve with a needlelike part, a fine adjustment, or a small opening, esp. a valve in which the opening is controlled by a needlelike or conical point that fits into a conical seat. 1900–05
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