指令G71格式第二行中的“U (△d) ”表示 ()。
A. X向每次进刀量,半径量
B. X向每次进刀量,直径量
C. X向精加工余量,半径量
D. X向精加工余量,直径量
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数控车床单一固定循环可以车( )。
A. 台阶外圆
B. 钻孔
C. 车端面
D. 切槽
Fill in the blanks with the words given below, change the form where necessary.global, significance, scan, virtual, subsequent,virtue1.Scientists are in general agreement that the warmer conditions we have been experiencing are at least in part the result of a human-induced warming trend .2.I the list quickly for my name.3.The authorities attached much to his visit.4.There have been further developments to our meeting.5.Honesty is a .6.Finding a parking space in the summer months is still a impossibility.
银杏叶能促进周边的血液循环,血循阻塞性情况有帮助。
A. 对
B. 错
银杏可开发叶、白果、银杏茶、银杏酒及保健饮料
A. 对
B. 错