beam path roller

例句：

1. 1. The beam path roller is used to adjust the light path in the optical system.
   光束路径滚轮用于调整光学系统中的光路。
2. 2. The beam path roller is crucial for maintaining the alignment of the optical components.
   光束路径滚轮对于保持光学组件的对准至关重要。
3. 3. The beam path roller was designed to minimize the effect of vibrations on the optical system.
   光束路径滚轮被设计成最小化振动对光学系统的影响。