短語詞組短語ball bearing tailstock center 滾珠軸承尾頂尖ball bearing antifriction center 減摩滾珠軸承頂尖bearing g center 軸承中心bearing center line 軸承連心線coordinate of bearing center 支座中心坐標(biāo)Bearing Center Hole 軸承中心孔roller bearing center 滾柱軸承中心ball -bearing center 滾珠軸承中心 返回 bearing center