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四、现有公式的理论基础及其考虑因素 前面介绍的壅水公式,都是建立在能量转化原理或动量守恒原理基础上的。堰流公式是能量转化的一种表现,实验公式也多少带有能
Fourth, the theoretical basis of the existing formula and its considerations Water formula described earlier, are based on the principle of energy conversion or momentum conservation principle based on. Weir flow formula is a manifestation of energy conversion, the experimental formula is also somewhat with energy