效益费用比

效益费用比为2.8倍；

The benefit-cost ratio is 2.8 times ;

资金优化方面，本文采用效益费用比方法取得了较好的优化效果。

Benefit cost ratio is used in optimization of funds allocation and obtaines better results .

防渗渠道建设项目的经济内部收益率为15%，经济效益费用比为1.29，经济净现值为12.62亿元。

The internal rate of return of economy is 15 % , the ratio of expense for the economic benefits is 1.29 , and the net value of economy is 1.262 billion Yuan .

大修决策须遵循效益费用比最优原则，合理协调设备大修与生产之间的关系，提高大修的经济合理性。

The overhaul decision should follow the principle of benefit and cost optimization . The relationship between the production and equipment overhaul should be rationally coordinated , improving the economic reasonableness of equipment overhaul .

在水利工程经济计算中，净现值、内部收益率、效益费用比等都是指标，只表示效益的相对高低，而不是真正的效益值；

In the economic calculation of hydraulic project , the data such as net present worth , interal rate of return , benefit-cost ratio are all indexes , which only reflect relative figures of benefits , but not the actual benefits .

采用效益费用比的方法，对不同处理方案进行比选，以最低处理成本和最佳处理效果为控制指标，最后确定高浓度含砷废水处理的最佳方案为中和氧化絮凝法。

Additionally , the method of benefit cost ratio was used to compare and select on different scheme . A lowest cost and best treatment effect are thought controlling standard . Neutralization-oxidation-flocculation process was determined as the optimal scheme to treat the wastewater with high concentration of arsenic .

以效益/费用比评估幽门螺杆菌根除方案

Appraising the eradication schemes of Helicobacter pylori with the ratio of utility to cost

本模型是在新建道路的起、终点给定的条件下，确定一个效益与费用比最佳的道路空间线形方案的优化问题。

This model is a mathematic optimization problem finding the road spatial alignment between the start and end points whose ratio of benefit to cost is optimal .

首先选择效益/费用比模型和阶段滚动法作为程序的理论依据，同时针对我国城市交通的现状，对效益模型进行了改进。

Cost benefit ratio model and stage rolled method are chosen as the theoretical foundations of the program , and then benefit model is improved to accord with the actuality of urban traffic in China .

本文首先简要阐述了微表处的技术特点，然后选取了高速公路某车辙病害路面进行研究，对采取微表处的经济效益进行分析计算，通过效益费用比法得出最佳养护时机。

This paper briefly describes the technical characteristics of the micro-surfacing , and select Expressway Rut road and slurry seal comparative advantage , research , analysis and calculation to take the economic benefits of micro-surfacing , the benefit-cost ratio method The optimal timing of conservation .

经济效益中的内部收益率为60.6%，经济效益费用比：3.85。

The inner income rate was 60.6 % and the ratio of economic to benefit was 3.85 .