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为简化计算,我们采用逐步逼近法求取界值。计算过程从略。这一方法更便于电子计算机求解。 兹将根据不同分级数目求出的运量界值示于表1。
To simplify the calculation, we use the stepwise approximation to find the cutoff. The calculation process omitted. This method is easier for electronic computer to solve. The values of the traffic volume calculated from the different grading numbers are shown in Table 1.