开滦的煤质现状及变化趋势
Coal Preparation Technology（2004）
Abstract
对开滦赋存和生产的煤炭质量进行了研究总结,分析了各生产矿井的煤种变化趋势,并结合市场需求探讨了开滦煤质升级以适应销售的可行性.
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Key words
kailuan coal mine,quality
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