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费用—效能分析是研究如何从几个方案中选择最优方案的方法(简称费效分析)，它着重从定量的角度把装备的费用与效能两者同时考虑以权衡方案的优劣。进行费用—效能分析的一个非常重要的问题就是装备最优化准则的建立。为了简便起见，选用的准则可确定为费用对效能的比率，如果?
Cost-benefit analysis is a method to study how to choose the optimal solution from several solutions (referred to as cost-effectiveness analysis). It focuses on the cost and efficiency of equipment both from a quantitative point of view in order to weigh the advantages and disadvantages of the program. A very important issue in performing cost-performance analysis is the establishment of equipment optimization criteria. For the sake of simplicity, the selected criteria can be determined as the ratio of cost to performance, if?