运用寿命周期费用分析法进行项目决策，按桥梁技术参数排序法和使用效果优化法进行系统决策。
And the life cycle cost analysis is used to make an item policy to develop a systematic countermove according to the arrangement of the technical parameters and the effect optimization.
一是提出了科学确定修理周期要求，在参考线路累计通过总重的基础上，应用工程类比分析法和经济寿命分析法进行综合分析确定；
On the base of the reference of track total passing weight, the analysing methods of engineering analogy and economy life-span are put forword.
工程经济学的基本方法，包括净现值分析法、寿命周期成本法、收益-成本分析法和其它项目评估方法。
Basic techniques of engineering economics, including net present value analysis, life-cycle costing, benefit-cost analysis, and other approaches to project evaluation are among the topics covered.
工程经济学的基本方法，包括净现值分析法、寿命周期成本法、收益-成本分析法和其它项目评估方法。
Basic techniques of engineering economics, including net present value analysis, life-cycle costing, benefit-cost analysis, and other approaches to project evaluation are among the topics covered.
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