A.甲鋼為本質(zhì)細晶粒鋼,乙鋼為本質(zhì)粗晶粒鋼; B.甲鋼為本質(zhì)粗晶粒鋼,乙鋼為本質(zhì)細晶粒鋼; C.兩者均為本質(zhì)粗晶粒鋼; D.兩者均為本質(zhì)細晶粒鋼
A.甲鋼為本質(zhì)細晶粒鋼,乙鋼為本質(zhì)粗晶粒鋼; B.甲鋼為本質(zhì)粗晶粒鋼,乙鋼為本質(zhì)細晶粒鋼; C.甲、乙兩種鋼均為本質(zhì)粗晶粒鋼; D.不能判定
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