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Paraphrase:It was my own time that had come, all in relation to it.

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Paraphrase:I had at first doubted their claim, as I knew for a fact that the center was located somewhere else in New England.

在G43G01Z15H15程序段中,H15表示()。

A. 刀具的地址是15;
B. Z轴的位置是15;
C. 长度补偿值是15;
D. 半径

以下提法中()是错误的。

A. G92是模态指令;
B. G03是逆时针圆弧插补;
C. G04X3.0表示暂停3ms;
D. G41是刀具左补偿。

在数控铣床中,如果当前刀具刀位点在机床坐标系中的坐标现显示为(120,-80,-80),若用MDI功能执行指令G92X80Y110Z100后,屏幕上显示的工件坐标系原点在机床坐标系中的坐标将是()。

A. (200,30,20);
B. (80,110,100);
C. (120,-80,-80);
D. (40,-190,-180)。