Non pressurized and pressurized vestibules design as per “Design of smoke management systems” handbook, 防烟楼梯间可有或无前室。无加压前室或加压前室的设计要跟 “Design of smoke management systems” 39 技术指引–设备(消防) NFPA 与 国标的比较手册名称: TNXXX 发行编号:草稿 日期:手册编号: 2008年...