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对在用转油线焊口磁痕采用渗透探伤、射线探伤的方法进行验证 ,最终判定该磁痕为非相关磁痕 ,并分析了产生的原因 ,从而得出了允许在用转油线投入运行的结论。
The method of penetrant flaw detection and ray flaw detection on the magnetic trace of the transfer line was used to verify that the magnetic trace was irrelevant to the magnetic trace and the reason was analyzed. The conclusion of the operation.