The air inlet and the air outlet of each section are provided with a regulating valve to adjust the air volume.
在每节的进风口与出风口处都设有调节阀，调节风量的大小。
A leeward side of the box is provided with at least one air outlet having a vent check valve.
所述箱体的背风面至少具有一个带有出气单向阀的出气口。
The gas reducing valve outlet structure comprises a gas piping connected on an air outlet, the gas piping is connected with the air outlet through a quick joint.
该气体减压阀的出口结构包括连接在出气口上的输气管，所述输气管通过快速接头与出气口连接。
A further improvement is made to provide a gas valve which is communicated with the air outlet through the airway on the base.
进一步改进，在底座上设有气嘴通过气道与出气口连通。
The one-way air outlet valve (6) adopts a spring type one-way air outlet valve.
所说的单向放气阀（6）采用弹簧式单向放气阀。
The one-way air outlet valve (6) adopts a spring type one-way air outlet valve.
所说的单向放气阀（6）采用弹簧式单向放气阀。
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