exposed installation
...因素确定管顶最小覆土深度不患上小于泥土冰冻线以下0.15m,桥式起重机道下的管线覆土深度不宜小于0.7m 明设 exposed installation 入户管(进户管) inlet pipe ..
电 Lighting Equipment ; luminaire
Lighting Design ; Illuminine Design ; Illumin Design
AALD ; ALDA
明设(exposed installation)指的是室内管道明露布置的方法。