• Brown coal is low calorific value coal. Now most of such coal is borne directly, its processing and utilization have certain limitation and hasn't been fully developed and utilized.

    褐煤热值多以直接燃烧方式,褐煤加工利用还具有一定局限性没有完全开发利用

    youdao

  • Brown coal is low calorific value coal. Now most of such coal is borne directly, its processing and utilization have certain limitation and hasn't been fully developed and utilized.

    褐煤热值多以直接燃烧方式,褐煤加工利用还具有一定局限性没有完全开发利用

    youdao

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