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【单选题】
用FANUC系统的指令编程, G03 X30.0 Y20.0 R10.0 ; 其中的X30.0 Y20.0t和R10.0表示( )
A.
圆弧终点的绝对坐标,圆心角小于180°并且半径是10mm的圆弧
B.
圆弧终点的绝对坐标,圆心角大于180°并且半径是10mm的圆弧
C.
刀具在X和Y方向上移动的距离,圆心角大于180°并且半径是10mm的圆弧
D.
终点相对机床坐标系的位置,圆心角大于180°并且半径是10mm的圆弧
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