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2014/12/29 12:10 336630 2.类似位置白油入孔.jpg
2014/12/29 12:10 322713 3.bga区域能削过孔焊盘的请尽量削过孔焊盘,少削bga.jpg
2014/12/29 12:10 243609 点亮的焊盘要板边金属化,需做pthrou.jpg