tangential position roentgenography of mandibular ramus

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 car's steering wheel is tangential to the dashboard.
   汽车方向盘与仪表盘成切线角度。
3. 3. The path is tangential to the river, making it easy to cross.
   这条路径与河流成切线角度，因此很容易过河。