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. 當初始含水量分布均勻時(shí)，降雨入滲過(guò)程中濕潤鋒面幾乎平行坡面運移，濕潤鋒深度與時(shí)間的關(guān)系可用冪函數描述。
With respect to the existence of asymptotically repetitive initial condition, the sufficient conditions are given, which guarantee the convergence of the learning control. 對于初始狀態(tài)函數漸近重復的情形，給出了這類(lèi)系統的極限軌跡和迭代輸出收斂于該極限軌跡的較弱的充分條件。
