The reclaimed-water utilization can reduce the quantity of discarded water and alleviate the contradiction of water shortage.
中水回用既可减少废污水排放量，又能缓解水资源短缺的矛盾。
The reclaimed-water utilization can reduce the quantity of discarded water and alleviate the contradiction of water shortage.
中水回用既可减少废污水排放量，又能缓解水资源短缺的矛盾。
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