• 本文成都市区化学组分进行因子分析

    Factor analysis was used for the data set of chemical components concentration of precipitation collected in Chengdu urban area.

    youdao

  • 根据资料南宁市地下化学进行区域划分,研究了化学类型组分含量变化特征规律

    The hydrogeochemical field of Nanning was classified. The character and changing rules of chemical classification, composition and content were discussed.

    youdao

  • 根据资料南宁市地下化学进行区域划分,研究了化学类型组分含量变化特征规律

    The hydrogeochemical field of Nanning was classified. The character and changing rules of chemical classification, composition and content were discussed.

    youdao

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