城市全户内变电站  urban indoor substation

高压户内穿墙套管  high tension indoor wall entrance bushing sleeve

户内、外大屏幕数字显示  indoor or outdoor display

户内安装  indoor installation

户内变电站  indoor substation

户内变压器  transformer; indoor

户内布线  interior wiring

户内采暖系统形式  residence heat supply system

户内单极隔离开关  indoor single-pole isolating switch

户内的  indoor

户内高压隔离开关  indoor high-voltage isolating switch

户内挂表  indoor installation gas meter

户内户外广告  indoor-outdoor advertising

户内回路  indoor circuit

户内开关场  indoor switchyard

户内配电变压器  indoor distribution transformer

户内燃气管  gas pipe in high-rise buileling

户内燃气管道  indoor gas pipe

户内式变压器  indoor type transformer