例句 /

Based on the analysis of externality characteristics of freeway, using input-occupation-output model, authors studied the marginal influence of freeway on social output and profit from the aspect of theory and established quantification model of externali

Based on the analysis of externality characteristics of freeway, using input-occupation-output model, authors studied the marginal influence of freeway on social output and profit from the aspect of theory and established quantification model of externali

摘要在分析高速公路外部性特征的基础上,利用投入占用产出模型,从理论上研究了高速公路对社会产出及收益的边际影响,进而建立了将高速公路外部性量化的模型。