短语词组短語worm -wheel shaft 蝸輪軸worm emery wheel 蝸杆砂輪Worm -wheel drive 蝸輪傳動involute worm emery wheel 漸開線蝸杆砂輪worm grinding wheel 蝸杆砂輪;蝸杆砂worm and wheel drive 蝸杆蝸輪傳動 返回 worm wheel