短语词组短語worm -gear case 蝸輪箱;渦輪箱worm reduction gear unit 蝸杆減速齒輪箱the worm and gear 蝸輪蝸杆WORM REDUCTION GEAR 蝸輪減速機;減速機;繙譯worm steering gear 蝸杆轉曏裝置worm barring gear 蝸輪傳動裝置worm and gear transmission 蝸杆傳動 返回 worm gear