文档介绍：目录一、物理安全(三级建设 -国标GB/T22239—2008) ( G3) ( G3) ( G3) (G3) (G3) ( G3) (G3) ( G3) ( A3) (S3) 5二、建设必要条件 7三、建设要求 总体要求 地面 天棚.......................................................................................................................................、柱面............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................