economic concentrate grade
economic concentrate grade
经济精矿品位
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Through the technical improvement, the iron concentrate grade is increased from 63.00% to 65.50% and its recovery is enhanced from45.00% to 70.00% with remarkable economic benefits obtained.
通过工艺改造，选矿回收率由改造前的45.00％提高到70.00％，铁精矿品位由改造前的63.00％提高到65.50％，取得了显著的经济效益。
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