发布时间:2025-02-01 11:17:00
电缆套官的型号与电缆截面相关,也与成品外径.
一般来说,电缆的截面不得大于电缆套管的内截面40%.
电缆的截面=成品外径的平方*0.7854.
电缆套官的内截面=内径的平方*0.7854.
3dmax2012用注册机注册了之后显示了成功然后点了完成然后又出现注册的那个对话框了这是怎么回事
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