短语词组短语locking tab washer 锁紧垫圈locking g washer 锁紧垫圈locking -type washer 止动垫圈Self Locking External Washer 轴用定位介子locking crank washer 止动垫圈locking washer screw 锁紧垫圈螺钉 返回 locking washer