Neglecting the time canstants, axial accelerations and the control overflow, the optimal strategy is reduced to the conventional proportional navigation guidance law.

当不计飞行器的响应时间、纵向加速度和控制溢出时，蜕化为常规比例导引。

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Workers built a huge system of waterways and pumping stations to control the overflow of Lake Okeechobee, north of the Everglades.

VOA: special.2009.06.30