Then again, how does he know about the Granin papers to begin with?
然而，寇德曼又是如何知道格兰宁的文件的呢？
However, because of fully granin refinement of martensite and good perfornance of temper resistance , the hardness of outer surface of worn side is equal to that of non-worn side.
而最表层由于获得完全细化的马氏体组织，拥有较好的回火稳定性，与未偏磨面表层硬度相当。
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