这些方法有碎磨、 筛分、 混匀、 选矿以及粉矿造块等。
These processes include comminution, screening, blending , concentration , and further more, agglomeration .
由于使用无需任何预处理和造块的矿粉，熔融还原法既可节能、又能减少污染。
The smelting reduction process saves energy and lessens pollution through using of ore fines without any pretreatment and agglomeration.
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