重介质选煤工艺，对产品中脱除的磁性介质进行回收、再生，是提高这一工艺经济实用性的有效方法。
The recovery of magnetic medium separated from product is an effective way to improve economic profit of dense medium coal separation technology.
重介质选煤工艺，对产品中脱除的磁性介质进行回收、再生，是提高这一工艺经济实用性的有效方法。
The recovery of magnetic medium separated from product is an effective way to improve economic profit of dense medium coal separation technology.
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