时空扩展对象模型与传统方法相比，能更方便地获取时空信息，加速建模过程，使建立的模型更容易理解和维护。

Compared with the traditional model, the spatiotemporal extended object model is able to speed up the data modeling process and to make model easier to comprehend and maintain.

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使国际领域产品生命周期理论能更好地解释现代国际贸易投资的新现象，也有助于从时间角度在整体上理解和把握国际贸易与投资的大趋势。

It helps to explain the foreign trade and investment in the modern times, to understand and grasp the trend of the foreign trade and investment from time dimension's Angle.

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虚拟试验结果表明：虚拟试验能较好的虚拟再现实车试验的场景，参与者能交互地控制仿真过程，使人们对车辆运动仿真的分析、理解变得更为容易。

The process of the Virtual experiment can been controlled interactively by the experimenter. This makes it easier to understand and analyze simulation result of vehicle movement.

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