tangential beam tube

例句：

1. 1. The angle of the roof is tangential to the wall.
   屋顶与墙成切线角度。
2. 2.The path was slanted at an angle that made it difficult to walk.
   小路斜着走，很难走。
3. 3.The painting has a tangential perspective that makes it look more realistic.
   这幅画有一个切线视角，看起来更真实。