s and modeling plex terrain[ R]. Maryland US : National Institute of Standards and Technology ,Р 1995.Р[5 ] YAN G Zhen hong. Studies on the strategy and technology of risk foresight on urban public security[A ]. International SymР posium on Science and Technology[ C]. Beijing : Science Press , 2004.Р[ 6 ] HUO Ran. The fire safety engineering summary in the buildings[ M ]. Hefei : China Science & Technology University Press ,Р 1999.Р[7 ] HUAN G Heng dong. The fire safety summary in the high rise buildings[ M ]. Chengdu : Sichuan Science & Technology UniР versity Press ,1992.Р[8 ] NIU Yu lan. The escape technology from the fire in the high rise buildings[J ]. Fire Control of Shandong , 1997 , (9) :32 -Р 33.Р © 1994-2006 China Academic Journal Electronic Publishing House. All rights reserved.