车床主轴的旋转精度、刚度、抗振性等对工件的加工精度和表面粗糙度有直接影响。( ) 发布时间:2018-04-29 04:58 │ 来源:www.tikuol.com 题型:判断题 问题: 车床主轴的旋转精度、刚度、抗振性等对工件的加工精度和表面粗糙度有直接影响。( )
题型:判断题 补全对话。A. Sure.B. I have a marker.C. I'm sorry.D. You are welcome.A: May I have a ruler, please? B: 1_________ I don't have a ruler. 2_________ A: May I have a marker, please? B: 3_________ A: Thanks. B: 4_________ 查看答案