护环钢50Mn18Cr4沿晶断裂分析及其对晶界损伤本质的探讨
호배강50Mn18Cr4연정단렬분석급기대정계손상본질적탐토
Intergranular failure analysis of retaining ring steel 50Mn18Cr4 and explore for the essence of grain boundary damage
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