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摘要 　对比了涉及地下汽车库通风及防排烟设计的3本规范的相关内容，介绍了应用规范、计算排烟量、选择风机、布置风口等的注意事项及合理做法。 关键词 地下汽车库 规范 通风　防烟分区　防排烟 诱导风机 排烟口 Discussion of several common problems in ventilation and smoke exhaust design of underground garages By Luo Gang and Wei Minzan Abstract Compares relevant texts in the three codes governing the ventilation and smoke exhaust design of underground garages, and presents notes and reasonable approaches of applying code, calculating exhaust smoke volume, selecting fans and air opening layout. Keywords underground garage, code, ventilation, smoke control zone, smoke control and extraction, induction fan, smoke exhaust opening