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直接还原炼铁
释义
直接还原炼铁
Encyclopedia
工学
直接还原炼铁法
释
direct-reduction ironmaking
直接还原炼铁
用气体、液体或固体还原剂在低于矿石软化温度下,将铁矿石还原成金属铁的非焦炼铁工艺。其产品称直接还原铁,是生产优质钢和洁净钢的理想原料。直接还原铁有大量微气孔,在显微镜下观察形似海绵,所以也称为海绵铁。用球团矿制成的海绵铁也称为金属化球团。
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algebraic curve of order one
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algebraic extension field
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