《日本水理公式例题集》例题2-8源程序 一般坐标的河道水流计算 利用给定的河道地形数据和水位、流量历时变化数据计算平面二维非恒定流动," Japan, the rationale for the formula of water Example Set" Example 2-8 source of the river flow in general coordinates calculated using the given data and river water lev