A.絕對尺寸 B.增量尺寸 C.極坐標(biāo) D.無法判斷
A.20 B.25 C. D.28
A.N60G01X60.0Y20.0;N70Z-3.0 B.N60G01Z-3.0;N70M03S800 C.N60M03S800;N70G01Z-3.0 D.N60M03S800;N70M08