Skilled operate numerical control lathe, understand machiningdrawing, Skilled use measurement tools.
熟练操作数控车床，看懂图纸，会使用测量工具。
2
Dimensions mark is an important part of drawing spares mapping, and dimensions of spares mapping is the ruler of machining and checking spares.
尺寸标注是绘制零件工作图的一项重要内容，零件图中的尺寸是加工和检验零件的重要依据。
3
An automatic forming method of detail drawing for bolt sphere machining is put forward, combined with bolt sphere machining, as post process of CAD software for grids (reticulated shell).