building material

名词 building material:

1. material used for constructing buildings

1. Building materials are expensive.
   建筑材料很昂贵。
2. A building material, such as a sheet of metal mesh, used for similar purposes.
   类似板条的建材建筑材料，例如金属网，与板条用于相同目的
3. A joint between two pieces of building material formed by a notch and a fitted projection.
   啮合扣两块建筑材料之间的连接，由一个槽口和一个与之相称的凸起物构成