close-grained pig iron的意思|示意

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密粒生铁

细晶粒生铁 ... Fine Grained Cast Iron 细粒铸铁制成 close-grained pig iron 细晶粒生铁 open-grained cast iron 粗晶粒铸铁 ...

细晶粒细晶粒 close grain; close-grained pig iron; fine again size; fine grain; fine-crystal ..