基本解释[機械工程]多頭螺紋蝸杆多頭蝸杆词组短语短語multi -start worm-gear 多頭蝸輪副singl -and-multi-start worm 單頭多頭蝸杆single -and-multi-start worm 單頭multi-start worm更多词组专业释义機械工程多頭螺紋蝸杆多頭蝸杆