A.220mm,5~120mm B.220mm,5~125mm C.320mm,5~125mm D.320mm,5~120mm
A.100kpa,0.0012N/mm2 B.100kpa,0.012N/mm2 C.100kpa,0.12N/mm2 D.100kpa,0.00012N/mm2
A.保證零部件的加工質(zhì)量 B.有利于提高生產(chǎn)效率 C.擴大機床的適用范圍,有利于組織流水線生產(chǎn) D.以上都是