The innovation and effect analysis of slack coal separation system technology was introduced in Fangezhuang Coal Mine Co.
介绍了范各庄矿业分公司选煤厂末煤分选系统技术改造及效果分析，提出了在改造过程中应注意的问题。
The innovation and effect analysis of slack coal separation system technology was introduced in Fangezhuang Coal Mine Co. branch, and some questions in the innovation were suggested.
介绍了范各庄矿业分公司选煤厂末煤分选系统技术改造及效果分析，提出了在改造过程中应注意的问题。
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