英语词汇“piston ring”是什么意思，“piston ring”的读音、用法及例句翻译-烛光网

词汇	piston ring
释义	piston ringn.（名词） An adjustable split metal ring that fits around a piston and seals the gap between the piston and the cylinder wall.活塞环：一种可调节的金属环，封住活塞与筒壁之间的空隙并环扣住活塞
随便看	retook retook retool retorsion retort retort retorted retorting retortion retortions retorts retouch retrace retract retract retracted retractile retracting retraction retraction retractions retractive retractor retractors retracts

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