针对模型求解上存在的困难，建立了一类伴随方程方法，解决了大规模地下水管理问题在内存上的困难，最后给出了一个算法和计算框图。
For solving this model, an adjoint equation approach is presented, which can overcome the difficulty of computer storage. Finally, an algorithm and a flow chart are given.
利用伴随方程与状态方程形式上的相似性，用数值方法实现了一种新的结构最优控制算法。
A new algorithm of optimal control to structural vibration has been realized by using state transition method which is based on the similarity between the companion equation and the state equation.
利用伴随方程与状态方程形式上的相似性，用数值方法实现了一种新的结构最优控制算法。
A new algorithm of optimal control to structural vibration has been realized by using state transition method which is based on the similarity between the companion equation and the state equation.
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