校氣缸余隙 cover piston: 閥動活塞套蓋cylinder piston: 汽缸活塞piston cylinder: 活塞筒cylinder cover: 氣缸蓋; 汽缸蓋罩; 圓網(wǎng)網(wǎng)面play the game of balancing between: 玩弄平衡下載手機(jī)詞典可隨時隨地查詞查翻譯