Poisson theorem and De Moivre-Laplace theorem present the approximate calculation formula of binomial distribution.
泊松定理、隶莫佛-拉普拉斯定理给出了二项分布的近似计算公式。
With the condition of the basic hypothesis, the approximate calculation formula was worked out on the gas folwing speed in the tubular centrifugal ventilator.
在基本假设的条件下，导出了筒形离心式通风机筒壳内气体流动速度的近似计算公式。
By using perturbation mode, we study the free falling eastward body, and present the first approximate calculation formula of the rotation angular velocity of the earth.
应用微扰论的方法对落体偏东进行研究，给出了在地球自转角速度一级近似下的计算公式。
An accurate linear damping calculation formula for free vibration system has been deduced and the application limits of the corresponding approximate calculation formula has been discussed as well.
本文推导出了自由衰减系统线性内耗准确计算公式，并讨论了原有的自由衰减系统线性内耗近似计算公式应用范围。
An accurate linear damping calculation formula for free vibration system has been deduced and the application limits of the corresponding approximate calculation formula has been discussed as well.
本文推导出了自由衰减系统线性内耗准确计算公式，并讨论了原有的自由衰减系统线性内耗近似计算公式应用范围。
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