净现值大于零说明项目对公司有正的净经济效益。
A net present value of greater than zero indicates that the project has positive net economic benefit to the company.
最大净现值标准——资源应该分配成具有利用最大价值，如果从所有可能利用的资源中收获净效益。
Maximum net present value criterion — Resources should be allocated to those USES which maximize the value if the net benefits received from all possible USES of those resource.
成本效益分比率准则——净利润现值低于零的无活力地区应该被承揽。
Cost-benefit ratio criterion----No activity where the present value of net benefits is less than zero should be taken.
之后，对灌溉效益特点进行深入地分析，并使用模拟方法，以经济净现值为指标对研究区的农业灌溉方案的经济效益进行模拟求解。
After these, this paper analyses the features of irrigation benefits, and calculates the average benefit of every scheme with simulated method, using Economic Net Present Value.
结果医院炮制的效益-成本比大于市场采购的效益-成本比，其净现值也大于市场采购品。
Results The ratio of benefit-cost in hospital processing products was more than market purchase products, and its NPV of hospital was also higher.
方法对我院五种蜜炙中药（冬花、紫苑、 麻黄、 百部、 甘草）和市场采购蜜炙炮制品的效益-成本比和净现值进行分析。
Methods On calculating methods of Net Present Value(NPV) for cost-benefit analysis between the market and hospital processing products from five kinds of honey-fried Chinese Herbs.
本研究采用净现值和两点分析法，建立了通用分析模型系统，对医疗设备项目的成本效益的统一规范的分析进行的有益的尝试。
This paper uses the NPV and two points method to build a general analysis system for prediction of cost and benefit of a medical equipment project.
边际效益与性状表现贴现值之积即经济加权因子。
Economic coefficient is equal to the product of marginal profit and expressed discounted value for objective trait.
边际效益与性状表现贴现值之积即经济加权因子。
Economic coefficient is equal to the product of marginal profit and expressed discounted value for objective trait.
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