【摘要】 通过对水跃方程进行数学变换，应用多元非线性回归分析法及迭代理论提出了梯形渠道共轭水深近似计算方法．这种算法使用方便准确，最大相对误差仅为１％，克服了查图表法精度低、试算法盲目性大且繁琐的缺点更多还原

【Abstract】 By the mathematics manipulation of hydraulic jump equation and the application of the method of multi variation nonlinear regression analysis and the iteration theory, this paper presents an approximate method to calculate conjugate depth, which is precise and easy to be used. With only a 1% maximum relative errors in some local points, this method overcomes the weakness of low accuracy in chart look up method and the blindness, as well as the complexity in trial and error method.更多还原