pretreatment by high pressure roller
...键字: 硫酸渣；高压辊磨预处理；润磨预处理；球团矿[gap=1871]Key words: pyrite cinder; pretreatment by high pressure roller; pretreatment by damp milling; pelletization...
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pretreatment by high pressure roller
高压辊预处理
以上为机器翻译结果，长、整句建议使用 人工翻译 。