optic axis rotation

• 光轴旋转

optic axis rotation的用法和样例：

例句

1. A wheel revolves about its axis.
   轮子绕轴旋转。
2. Plane "hovers" vertically in place, rotating left around its roll axis.
   飞机垂直地悬浮在空中，并向左绕其滚轴旋转。