【单选题】【消耗次数:1】
所谓插补就是根据输入线型和速度的要求,()。
实时分配各轴在每个插补周期内的位移量
计算各轴下一插补周期的位移量
实时计算刀具相对与工件的合成进给速度
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①  as old as
②  as early as
③  as soon as
④  as much as