tailings from iron ore dressing
tailings from iron ore dressing
铁矿选矿尾矿
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The experimental study on the re-grinding of primary concentrate has been conducted through the investigation and analysis on the process to recover iron concentrate from tailings of ore dressing.
通过对选铁尾矿中回收铁精矿的工艺考查、分析，进行了粗精矿再磨工艺的试验。
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