tangential hob

例句：

1. 1. The angle of the roof is tangential to the wall.
   屋顶的角度与墙成切线。
2. 2. The car's steering wheel is tangential to the road.
   汽车的方向盘与道路成切线。
3. 3.The path is tangential to the lake, providing a scenic view.
   路径与湖面成切线，提供了美丽的风景。