技术专栏
PCB开孔
8***4A
4803
1
开方形孔时,能否减小4个圆角半径(理想情况是直角)<br /><img src=‘/uploadfiles/image/20210611/1623394181047044638.jpg’ title=‘1623394181047044638.jpg’ alt=‘IMG_20210611_144613_edit_139021414488161.jpg’/>
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