动态门—地下建筑中防排烟的新装置这种被称为动态门的装置，其实就是人们常见的安装在商店与仓库的入口处采用一束喷射气流组成一道气幕以阻止灰尘、寒气或雨进入商店或仓库。地下建筑中不同的房间之间，因其出入口与外界相通，而气压不尽相同，这种差异必然引起空气的补... Dynamic doors - new devices for smoke prevention in underground buildings This device, called dynamic doors, is actually a common installation of a jet of air jets at the entrance to the store and warehouse to form an air curtain to prevent dust, cold air or Rain enters the store or warehouse. Between different rooms in underground buildings, because the entrance and exit are connected with the outside world, and the pressure is not the same, this difference will inevitably cause the air to make up...