短語詞組短語manual arc -welding power source 手工弧焊電源manual metal -arc welding 手弧焊manual eletro -slag welding 手工電渣焊manual electro -slag welding 手工電渣焊manual semi -automatic welding 手工半自動焊manual l metal -arc welding 手弧焊manual tungsten arc argon -shielded welding 手工鎢極氬弧焊manual tungsten are argon -shielded welding 手工鎢極氬弧焊one -sided manual welding 手工單面焊 返回 manual welding