Environmental problems are hot-spots of the society, especially the urban environmental problems.
环境问题是现在社会热点，尤其是城市环境问题。
The scheme systematically sums up the different urban environmental problems the urban zones faced, and the characteristics of specific urban environmental problems are analyzed.
该分类方案系统归纳了各类城市环境地质问题，同时对城市中特定的环境问题类型特征进行了分析。
The scheme systematically sums up the different urban environmental problems the urban zones faced, and the characteristics of specific urban environmental problems are analyzed.
该分类方案系统归纳了各类城市环境地质问题，同时对城市中特定的环境问题类型特征进行了分析。
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