数字用户线存取模块
digital subscriber line access module
内存分区存取属性
memory partition access attribute
户内外母线式穿墙套管
indoor and outdoor bus bar bushing
户内外寒暑表
indoor-outdoor thermometer
户内外布置
indoor and outdoor arrange
区域内存总线接口
local memory bus interface
户内挂表
indoor installation gas meter
户内高压隔离开关
indoor high-voltage isolating switch