The Froude number of flow is the factor of flow status: supercritical flow or subcritical flow.
2
临界流压是地层的特征参数，不随地层压力发生变化。
The critical flow pressure is a characteristics parameter which does not change with reservoir pressure.
3
依据牛顿算法及渐近解分析，本文提出了一种梯形明渠临界流方程的直接算法。
By Newton algorithm and the analysis for asymptotic solution, this paper presents a direct formula for calculating critical depths of trapezoidal open channels.
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