采用阿当姆斯预估-校正方法对多体系统动力学方程求解，该方法重复使用前几步信息，计算速度快。

The Adamas method has been adopted to solve the dynamic equation of multibody system and the data of several forward steps has been repeatedly used, so the speed of computation is high.

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曼联还没有讨论过让范德萨当教练的事情，不过爵爷表示曾在阿贾克斯、尤文图斯和富勒姆效力的范德萨有这个能力。

United have not discussed a possible coaching role with Van der Sar, although Ferguson indicated a position could be made available for the former Ajax, Juventus and Fulham goalkeeper.

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