On the base of which, to build the economic evaluation models of the single well, in order to determine the limits of economic output and the effective classification of the single Wells.
并在此基础上，构建了单井经济效益评价的数量经济模型，以此来确定单井的极限经济产量与单井经济效益的划分类型。
In the process of evaluation, firstly, the indicators of city classification and intensive land use were collected, which mainly included city construction land and relative social-economic data.
在研究过程中，收集了与城市分类与集约利用评价相关的指标，主要包括建设用地与相关的社会经济指标。
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