A method to reduce the vibration and noise of centrifugalventilator room is introduced in this paper.
本文介绍一种对通风机房振动、噪声进行治理的方法，结果表明这种方法可使噪声明显降低。
2
With the condition of the basic hypothesis, the approximate calculation formula was worked out on the gas folwing speed in the tubular centrifugalventilator.
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。
3
A special CAD system for the centrifugal type ventilator was developed.