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根据河流动力学基本方程，采用水文学与水－沙关系相结合的方法，建立了适用于不受回水顶托影响，以悬移质为主且水－沙关系良好的冲淤河道的水位预报模型，应用于渭河咸阳－华县河段，精度提高。
According to the basic equation of river dynamics, the water level of the scouring and silting river channel, which is dominated by suspended sediment and well-water-sand relationship, is established by combining the hydrology and water-sand relationship The forecast model is applied to the Xianyang-Huaxian reach of the Weihe River to improve the accuracy.