roof frame

• 屋顶结构

roof frame的用法和样例：

例句

1. In general, the roof structure remained intact, except for some deflection near the center.
   总的来说，屋顶结构除近中央处有些弯曲之外，其余没有受到破坏。
2. After the sealing of roof structure, the bulging parts of the bare floor should be first leveled.
   屋顶结构封顶后，先将素地面突起点作适当整平。