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 ringˈpiston ring noun [countable] a circular metal spring used to stop gas or liquid from escaping from between a piston and the tube that it moves in
随便看	noncom noncombat noncombatant non-commissioned officer noncommittal noncommittally noncompetitive noncompliance non compos mentis nonconformist nonconformity noncooperation noncount noun noncustodial non-dairy nondeductible nondenominational nondescript nondisclosure nondurable goods nondurables none nonelectrolyte nonentity nonessential

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