介绍了多层、高层建筑中的地下室通风及防排烟系统的设计及其特点 ,强调应根据地下不同的用途划分防烟分区 ,布置风口及排烟口 ,并通过计算风道截面尺寸 ,选择合适的风机 The design and characteristics of basement ventilation and smoke exhaust system in multi-storey and high-rise buildings are introduced. It is emphasized that the classification of smoke partitions, arrangement of tuyeres and exhaust ports should be made according to the different uses in the underground. Suitable fan