将分别对应于边壁和床面的爱因斯坦阻力公式应用阻力计算中，可以解决方程组不闭合的问题。
When the Einstein logarithmic resistance formula is used to calculate the resistance of sidewall and bed flow respectively, the closure problem of equation group can be solved.
将分别对应于边壁和床面的爱因斯坦阻力公式应用阻力计算中，可以解决方程组不闭合的问题。
When the Einstein logarithmic resistance formula is used to calculate the resistance of sidewall and bed flow respectively, the closure problem of equation group can be solved.
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