因此不可避免地产生大量边角余料，钢材浪费严重。二是切割效率低，由于需要在控制器上由操作人员进行手工编程和手工套料，因此导致数控切割机大部分时间闲置，处于等待编程套料。
參考答案:Therefore inevitably produces the massive corners -odd material, the
steel products waste is serious. Two, cuts the efficiency to be low,
because needs to carry on the manual programming and the manual
jacking on the controller by the operator, therefore causes the
numerical control cutter majority of time to leave unused, is in the
waiting programming jacking
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