Then after thick, the essence two axle diameter localization drills the thread, the keyseat and the mill crank end surface.

机械加工工艺是规定产品或零件机械加工工艺过程和操作方法，是指导生产的重要的技术性文件。

Ends of the tegular filters (10) are cut off crosswise to make the end surfaces respectively form inclined surfaces such that vertical sections of the tegular filters (10) are in a rough trapezoid.

瓦状滤波器(10)的端部被斜向切除以使端面分别形成斜面，从而瓦状滤波器(10)的垂直截面呈大致梯形。