屋面天沟 meaning in English
open valley
Examples
- Class 1 - residential / light commercial snow melt : recommended for residential and light commercial walkways , driveways , entrances , and other light traffic ways , ramps and building entries
冰雪融化系统实际上可安装在任何地方，如停车场、车道、装卸区、桥梁、人行道、户外阶梯、檐槽、屋面天沟、屋顶、下水管道，大约地表5厘米下的混凝土中。