第四章利用网络DEA对能源与环境治理系统进行综合评价，并进行了实证研究；
In the fourth chapter, we use network DEA to evaluate efficiency of energy and environmental governance system comprehensively, also we give an example to illustrate the our research.
第四章利用网络DEA对能源与环境治理系统进行综合评价，并进行了实证研究；
In the fourth chapter, we use network DEA to evaluate efficiency of energy and environmental governance system comprehensively, also we give an example to illustrate the our research.
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