短語詞組短語operating valve lever 操作閥桿operating intermediate lever stud 中間操作桿樁operating rod lever 操作桿臂operating g lever 操縱桿;操作桿clutch operating shaft lever 離合器操縱軸桿operating percussion lever lug 操縱擊發(fā)杠桿凸部operating relay lever 繼電器操縱桿disengaging device operating lever 分離機(jī)構(gòu)操縱桿hand operating lever 手操縱桿;手操作杠桿 返回 operating lever