求翻译：本文阐述了国内汽车传动系参数优化设计的研究现状，总结目前传动系参数优化设计研究中的评价指标、常见模型、和已使用的优化算法是什么意思？

This paper describes the current situation of the domestic automobile transmission parameter optimization design, summarizes the current train parameters to optimize the evaluation design study, the common model and optimization algorithm

This paper describes the domestic automotive drive train parameter optimization design of the study of the current situation, and summarize the current drive system parameter optimization in the study design of the evaluation indicators, common models, and has been used by the optimization algorithm

This article elaborated the domestic automobile power transmission parameter optimization design research present situation, summarizes in the present power transmission parameter optimization design research appraisal target, the common model, and already the optimized algorithm which uses

The article gives the current status of domestic research on optimization design of automobile Powertrain parameter, summary of the current research on parameter optimization design of transmission evaluation indicators, common models, and has been using optimization algorithm

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