seconed short circuited melted mark
一次短路熔痕primary short circuited melted mark 二次短路熔痕seconed short circuited melted mark 短路熔珠内部空洞inside carity caused by short circuited melted bead ..
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seconed short circuited melted mark
二次短路熔痕
以上为机器翻译结果，长、整句建议使用 人工翻译 。