angle section of equal legs

例句：

1. 1. The engineer measured the angle section of the roof to ensure it was structurally sound.
   工程师测量了屋顶的角部，以确保其结构稳固。
2. 2. The architect designed the building with an angle section that maximized natural light.
   建筑师设计了这座建筑，使其具有最大的自然光利用角部。
3. 3. The carpenter cut a precise angle section for the door hinges.
   木匠为门铰链精确切割了一个角度部分。