work-piece diameter error 工件直径误差
work piece diameter
工件直径
以上为机器翻译结果，长、整句建议使用 人工翻译 。
According to characteristics of lathe cutting, two gratings are adopted to measure changes of the diameter when work piece being processed, then calculating the diameter.
根据车削加工的特点，采用两个光栅测量工件加工时的外径变化，最后计算出工件直径。
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