运营成本计算是高速铁路建设和经济效益评价的关键问题之一。
Operation cost account is a critical aspect of high speed railway construction and its economy benefit evaluation.
因此，本文对小型水库建设项目社会经济效益评价进行了研究。
Therefore, this article research socioeconomic benefit evaluation of the small-scale reservoir.
本文对铁路旅客列车开行方案经济效益评价的指标体系及其计算表达式进行了研究。
The thesis sets up an indicators system on economic return evaluation of passenger train plan and discusses the calculation and relationships of these indicators.
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