短語詞組短語Recirclulating Ball and Nut 循環(huán)滾珠式ball screw nut 球頭螺釘螺母ball stud nut 球頭螺柱螺母ball flange nut 球形法蘭連接螺母ball bearing nut 滾珠軸承螺母ball bearing nut detail 滾珠軸承螺母ball recirculating nut steering gear 用封閉循環(huán)滾珠螺母的轉向機構Ball -nut type steering gear 循環(huán)球式轉向器;循舉世式轉向器 返回 ball nut