单一磨矿和组合磨矿的开路试验表明，组合磨矿对选别指标的提高效果显著。
The results of single grinding and combined grinding tests were showed that the effect of the combined grinding was better than that of single grinding.
单一磨矿和组合磨矿的开路试验表明，组合磨矿对选别指标的提高效果显著。
The results of single grinding and combined grinding tests were showed that the effect of the combined grinding was better than that of single grinding.
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