This equation is one of the most useful, as it allows the nozzle exit velocity to be calculated.
这个等式是其中一个最有用，因为它允许喷嘴出口速度计算。
Comparing the calculated and experiment results show that the mathematical model is feasible and may be used to measure and study the velocity of sheet flow, sediment and the distribution of solute.
计算结果与实验结果比较表明此数学模型是可行的，有可能用于测量和研究水流速度、泥沙含量及溶质在水流中的分布。
The current velocity is an important parameter of debris flow, and it is more difficulty to be measured and calculated.
泥石流流速是难以实测和准确推算的重要参数。
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