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如何测一根钢丝直径
更新时间: 2020-09-16 00:00:00  

测一根钢丝直径步骤:

1、用一只铅笔和刻度尺来测,首先把细铜丝在铅笔上紧密排绕若干圈。

2、然后用刻度尺测出这个线圈的总长度L。

3、然后仔细数出细铜丝的圈数N。

4、最后由d等于L除以N计算出细铜丝的直径。

关键词: 如何 钢丝 直径

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