基本解释n.[机]润滑油孔；注油孔同根派生 英汉例句Design of the Drilling Head Using in Oblique Oilhole of Crank 曲轴斜油孔钻削头设计Keywords crank's oblique oilhole;special drilling head;electromagnetic clutch; 曲轴斜油孔;专用钻削头;电磁离合器;