英语词汇“back pressure”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	back pressure
释义	back pressure noun 1. : residual pressure on the exhaust side of a steam-engine piston against which the steam on the intake side must work 2. : opposition to flow of a liquid or gas due to friction, inertia, gravity, or other cause
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