axis angle

例句：

1. 1. The car's steering wheel is mounted on the vehicle's longitudinal axis.
   汽车的方向盘安装在车辆的纵向轴线上。
2. 2. The new model has a more ergonomic design that aligns with the human body's naturalaxis.
   新款设计更符合人体自然轴线，更加人体工学。
3. 3. The scientist used an X-ray to determine the exact position of the axis in the bone.
   科学家使用X光来确定骨头中轴的位置。