The wetting front moved nearly parallel to the soil surface, and its length could be described by a power function of time, when the distribution of initial soil water was uniform. 當初始含水量分佈均勻時，降雨入滲過程中濕潤鋒面幾乎平行坡面運移，濕潤鋒深度與時間的關係可用冪函數描述。
With respect to the existence of asymptotically repetitive initial condition, the sufficient conditions are given, which guarantee the convergence of the learning control. 對於初始狀態函數漸近重複的情形，給出了這類系統的極限軌跡和迭代輸出收斂於該極限軌跡的較弱的充分條件。
