对边际机会成本深入分析，建立再生水资源的边际机会成本模型，阐述其各要素内涵；
Through the MOC (marginal opportunity cost) analyzed, model of reclaimed wastewater has been given, and expatiate the meaning of the parts of this model;
它的灌溉率及电气化程度均为全球最低，仅3%的再生水资源得到利用，反观南亚，再生水资源的利用率高达52%。
It is the least irrigated and electrified, yet it USES only 3% of its renewable water, against 52% in South Asia.
城市水环境安全和水资源保护已经成为备受关注的热点问题，而城市污水和再生水的消毒是其中的关键环节。
Water environmental safety and water resources protection have become the hot issues in recent years, and disinfection of urban wastewater and reclaimed water is the most important part.
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