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[单选题]
加工中心在铣削加工一个某Y平面上的圆弧时,圆弧起点在(30,0),终点在(-30,0),半径为R50,圆弧起点到终点的旋转方向为顺时针,则铣削圆弧的指令为()。
A.G17G90G03某-30.0Y0.R-50.0F50
B.G18G90G02某-30.0Y0.R50.0F50
C.G17G90G02某-30.0Y0.R-50.0F50
D.G18G90G02某30.0Y0.R50.0F50
查看答案
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.G17G90G03某-30.0Y0.R-50.0F50
B.G18G90G02某-30.0Y0.R50.0F50
C.G17G90G02某-30.0Y0.R-50.0F50
D.G18G90G02某30.0Y0.R50.0F50