英语词汇“piston ring”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	piston ring
释义	piston ring 基本英英例句 n.活塞环机械设备 Noun: seal consisting of a split metal ring that seals the gap between a piston and the cylinder wall用作名词These bands are called piston rings.这些圈叫做活塞环。 This occurs especially during ring reversal.这种情况尤其发生在活塞环倒向期间。
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