The recovery and utilization of the intermediate water, which can prevent water pollution and protect environment, is an important way to solve the problem of the shortage of urban water resources.
中水回用可以防治水污染，保护水环境，也是解决城市水资源不足的一个重要途径。
Simultaneously, special pipes are arranged for collecting rain water on roofs into the filter tank, so that a problem of urban water shortage can be better solved.
同时设有专用的管道将天台上的雨水收集到过滤池，从而使城镇缺水的难题得到较好的解决。
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