The air inlet and the airoutlet 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。
2
A leeward side of the box is provided with at least one airoutlet 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。
3
The gas reducing valveoutlet structure comprises a gas piping connected on an air outlet, the gas piping is connected with the air outlet through a quick joint.