求翻译：本文采用国际通用的DL-EPR试验方法，先用上述浓度进行试验，未发生晶间腐蚀，后增加介质浓度，最终发现了晶间腐蚀，并优选出耐晶间腐蚀性能好的特殊热处理制度是什么意思？

In this paper, international general dl-epr test methods, using the above-mentioned concentration tested, did not occur to intergranular corrosion, increased media concentration, and eventually found the intergranular corrosion, and optimized the resistance to intergranular corrosion good special he

This article by using the international generic DL - EPR test method, first use of the above concentrations, and there have been no tests between crystal after corrosion, and increased media concentration, and ultimately found that the Crystal room, corrosion resistance and to optimize crystal-elect

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International DL-EPR test methods used in this article, first with the above experiment with concentration, intergranular corrosion does not occur, after increased media concentration, eventually found the intergranular corrosion, optimization and intergranular corrosion resistance performance good

This article uses the international general DL-EPR testing method, uses the above density to carry on the experiment first, has not had the intercrystalline corrosion, latter increases the medium density, finally had discovered the intercrystalline corrosion, and optimal bears the intercrystalline c