隐蔽布线,暗线
1. 隐蔽电线:concealed piping 隐蔽喉管 | concealed wiring 隐蔽电线 | concentrated load 集中载重;集中荷载
2. 隐藏式路由:concave mirror 凹镜 | concealed wiring 隐藏式路由 | concentration cell 浓差电池
3. 隐蔽布线:concealed mounting 隐蔽安装 | concealed wiring 隐蔽布线 | concentrate 浓缩物;集中
4. 暗线:concealed sprinkler 隐藏型洒水喷头 | concealed wiring 暗线 | concentrate foam liquid 泡沫液