The main drainage channel for yellow sand to the sea port, and some flooding from the Sheyang River into the sea.

主要排水入海河道为黄沙港，另有部分洪水从射阳河下排入海。

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Based on the theories of dynamic programming, an optimum method has been worked out in this paper to solved the problem for water level control of main drainage channel and an example has been given.

本文应用动态规划理论，探讨了一个解决排水干道水位控制优化问题的方法，并附有计算实例。

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