In the third chapter, the optimized models, the optimizing and the evaluating system of impeller are studied.
第三章研究了叶轮的优化模型，对叶轮的优化和评价体系进行了研究。
Evaluation index system of passenger train operation plan is the basis for evaluating and optimizing passenger train plan.
旅客列车开行方案评价指标体系是评价和优化开行方案的基础。
The evaluating indexes system of the fitting choice and decision is set up. The methods of canting the indexes and evaluating the fitting plans are presented for optimizing the fitting decision.
探讨了评价指标的量化方法和装卸机械配备方案的综合评价方法，可用于公路货运站场装卸机械配备的选型优化决策。
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