wall angle短语¹⁴⁴⁹⁷²⁺² 基本例句 🌏侧壁倾角；墙壁角；边龙骨 The professional systems of water supply and drainage and rainwater harvesting, which designed by ourselves, can effectively solve the leakage problem of roofing and wall angle. 采用专业给排水和自行设计的雨水收集系统，可有效解决房屋屋面、墙角渗漏问题。 toushuizhuan