英语词汇“piston ring”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	piston ring
释义	piston ring a metallic ring, usually one of a series, and split so as to be expansible, placed around a piston in order to maintain a tight fit, as inside the cylinder of an engine. Also called packing ring, ring. [1865-70]
随便看	invite inviting in vitro in vitro fertilization in vivo invocate invocation invoice invoke involucel involucrate involucre involucrum involuntary involute involuted involute teeth involution involutional involutional melancholia involve involved invt. invulnerable inwale

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