屋面排水沟 meaning in English
valley
Examples
- Roofing and wall cladding . fasteners . determination of the characteristic resitance of the assembly . test method to determine pull - out load of fasteners in crow or valley fixing out of their subconstruction
屋面和墙壁覆面.紧固件.组件抗性测定.拱顶和屋面排水沟安装的紧固件从基底拉出的拉拔负荷的测定试验方法