The result shows that the pressurized supply air rate has a significant effect on the pressure difference of both sides of the door especially the door of the firefloor.
模拟结果表明：加压送风量的大小对门两侧的压差值特别是着火层的门两侧的压差值具有决定性的影响。
2
There is a fire exit on each floor of the building.
这栋建筑每层楼都有个消防通道。
《牛津词典》
3
Ash covered the marble diamond-patterned floor and floated in large pools of greywater from the fire hoses.