Time to rush folwing and flow away quietly.
时间匆匆流过，没有声响地流走。
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。
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。
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