Achieving the urban rainwater resources may abate efficiently the urban flood disaster and alleviate the pressure of the water supply.
实现城市雨水资源化可以有效地减轻城市洪涝灾害，缓解城市供水压力。
Rainwater utilization has the functions of saving water resources, alleviating flood disaster, supplementing the groundwater, controlling runoff pollution and improving urban ecological environment.
雨水利用具有节约水资源、减缓洪涝灾害、补充地下水、控制径流污染和改善城市生态环境等作用。
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