... 外部经济变数 external economic variable 外部经济理论 theory of external economy 外部经济效果 externalities ...
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First of all, this paper reviews the industrial cluster external economy effect theory; offer the theoretical foundation for subsequent comparative study and analysis.
首先，本文回顾了产业集群外部经济效应理论，为后续的比较研究和分析提供理论基础。
This paper discussed the principle of externality in the domain of urban wastewater reuse, analyzing the external economy of urban wastewater reuse with the theory of economics.
文章运用经济学理论分析了城市污水资源化的外部经济性。
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