蒸酸后残液中的镍、铬、铁等有价金属元素含量可提高一倍以上，为其综合利用奠定了基础。
The content of valuable metal, such as Ni, Cr, and fe in residual liquors can be doubled after evaporation treatment. This will be in favor of the effective use.
蒸酸后残液中的镍、铬、铁等有价金属元素含量可提高一倍以上，为其综合利用奠定了基础。
The content of valuable metal, such as Ni, Cr, and fe in residual liquors can be doubled after evaporation treatment. This will be in favor of the effective use.
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