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The basic organization and simulation principle of the system are presented, and the simulation model for the underwater vehicle and real-time integer algorithm are discussed.

给出了半实物仿真系统的基本组成和工作原理，讨论了水下航行器运动的仿真模型和实时积分算法。

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At the same time, use VISSIM, the microscopic traffic simulation software, to analyze traffic running condition of those points, and put forward the advices of traffic organization in the arena.

同时，结合宏观预测结果，应用VISSIM微观仿真软件分析关键节点的交通运行状况，提出世博会园区游客步行交通组织建议。

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