The urgency. necessity and feasibility of wastewater renovation are reviewed from the points of policy, economy and technique in this paper.
本文从政策、经济、技术等方面综述了中水回用的紧迫性、必要性和可行性。
The urgency. necessity and feasibility of wastewater renovation are reviewed from the points of policy, economy and technique in this paper.
本文从政策、经济、技术等方面综述了中水回用的紧迫性、必要性和可行性。
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