Sewage utilization is one of the most effective measures to solve the crisis of water resources and prevent water pollution.

城市水资源化是解决水危机、防治水污染的有效途径之一。

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Besides, the recycling use of sewage, utilization of seawater and rainwater are also in the low level in our country.

此外，我国在污水处理回用、海水及雨水利用等方面也处于较低水平。

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Besides, the recycling use of sewage, utilization of seawater and rainwater are also in the low level in our country.

此外，我国在污水处理回用、海水及雨水利用等方面也处于较低水平。

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