英语词汇“positive crankcase ventilation”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	positive crankcase ventilation
释义	WordReference Random House Unabridged Dictionary of American English © 2024 pos′itive crank′case ventila′tion, [Auto.] Automotivea means of reducing air pollution by directing the fumes from the crankcase of an engine into the intake manifold, so that they will be channeled into the cylinders and burned. Abbr.: PCV
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