常見(jiàn)例句Design of the Drilling Head Using in Oblique Oilhole of Crank 曲軸斜油孔鑽削頭設(shè)計(jì)Keywords crank's oblique oilhole;special drilling head;electromagnetic clutch; 曲軸斜油孔;專(zhuān)用鑽削頭;電磁離郃器; 返回 oilhole