• The composition and source of lower molecular weight compounds in coal and several chemical structure models of coal were introduced.

    介绍中低分子化合物组成来源几种化学结构模型以及分子化合物主要研究方法。

    youdao

  • The composition and source of lower molecular weight compounds in coal and several chemical structure models of coal were introduced.

    介绍中低分子化合物组成来源几种化学结构模型以及分子化合物主要研究方法。

    youdao

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