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TCAN1042VDRQ1管脚氧化?



您好,我想咨询一下,下面四个图中    是不是从上边图片就能判断出,上边第一第二个图片严重管脚氧化和下边两个图1916的芯片管脚有轻微氧化或部分氧化?谢谢!