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	mouth-to-mouth resuscitation mouthwash mouthwatering mouthy mouton moutonnée moutonnées moutons movable movable feast movables movable type move moveable moveable moved movement movements movement therapy mover mover and shaker movers movers and shakers moves movie

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