最后，本文对系统设计思想和实施效果做了适当的总结，并对PDM及产品结构与配置管理的研究和技术应用的未来发展趋势作了简要的分析和展望。
At last, this paper makes adequate summary of the system's design concept and implement effect, and briefly analyses the development trend of PDM and PSCM technology.
本文对网络游戏产业的概念、特点和现状作了一个概括，同时展望了我国网络游戏产业未来的发展趋势。
This paper summarized network game industry's concept, characteristic and present situation, and prospected the future developing trend of China's network game industry.
本文综合论述了纯电动汽车、混合动力电动汽车和燃料电池电动汽车的研究现状，并对它们未来的发展趋势作了展望。
This paper gives a brief view for present status of battery electric vehicle, hybrid electric vehicle and fuel cell electric vehicle and makes a prospect for their future technology.
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