• This paper deals with petrographic characteristics and coal qualities of Jiaoping coal by means of coal petrologic, instrumental analytical and organic solution extraction methods, and so on.

    基于分析仪器分析有机溶剂提等方法,对焦坪进行了系统煤岩、煤质研究。

    youdao

  • This paper deals with petrographic characteristics and coal qualities of Jiaoping coal by means of coal petrologic, instrumental analytical and organic solution extraction methods, and so on.

    基于分析仪器分析有机溶剂提等方法,对焦坪进行了系统煤岩、煤质研究。

    youdao

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