Ventilation system by sending the exhaust fan, duct, duct parts, muffler etc.

通风系统由送排风机、风道、风道部件、消声器等组成。

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Presents a method to make the smoke exhaust rate equal to the ventilation rate by smoke control zoning for the usage of the dual purpose fan.

为实现风机的兼用，提出通过划分防烟分区，使排烟风量与通风风量保持一致的方法。

youdao

Presents a method to make the smoke exhaust rate equal to the ventilation rate by smoke control zoning for the usage of the dual purpose fan.

为实现风机的兼用，提出通过划分防烟分区，使排烟风量与通风风量保持一致的方法。

youdao