A.0.01~0.02mm B.0.02~0.05mm C.0.1~0.2mm D.1~2mm
A.部件裝配 B.總裝配 C.組件裝配 D.裝配
A.立式鉆床 B.臺(tái)式鉆床 C.手電鉆 D.沖擊鉆