With components evaluation and expert evaluation, the comparative analysis of the actual efficacy index, cost index and price index of sample project is made.

应用给分量化评估和方案专家评估方法，对样本项目实际施工功效指数、成本指数和价格指数进行比对分析；

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Two maintenance interval models with maximum availability and average cost are proposed, and the importance of the two is determined by the way of expert evaluation.

提出了可用度最大和平均维修费用最低的两种维修间隔期模型，采用专家评分的方式确定二者的重要度，通过计算得出最佳维修间隔期。

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