Set up on the roof Siphon rain bucket, the contact piece of roofing material should be and the corresponding material.
设置于屋面上的虹吸式雨水斗,其接触片材质应和屋面防水相对应。
Bhutan also aims to reduce the dependency of national park residents on national park resources, such as firewood, timber, roofing material and other forest products.
不丹还打算减少国家公园居民对国家公园资源(诸如木柴、木材、房顶材料和其他林产品)的依赖。
The plane's steel structure was used for load-bearing walls, while the light-weight aluminum shell and wings were reappropriated as roofing material and exterior walls.