• 中国煤炭资源“井”字型分布格局煤炭资源地质的、地理的、社会经济区域分异现象,进行综合考量所得出之认识

    The new cognition of the octothorpe shaped distributing pattern is gotten after synthesized deliberation of coal resource geologic, geographic and socioeconomic regional differentiating phenomena.

    youdao

  • 中国煤炭资源“井”字型分布格局煤炭资源地质的、地理的、社会经济区域分异现象,进行综合考量所得出之认识

    The new cognition of the octothorpe shaped distributing pattern is gotten after synthesized deliberation of coal resource geologic, geographic and socioeconomic regional differentiating phenomena.

    youdao

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