1. 视力的；视觉的；光的；光学的
Optical devices, processes, and effects involve or relate to vision, light, or images.
optical
e.g. ...optical telescopes.
光学望远镜
e.g. ...the optical effects of volcanic dust in the stratosphere.
火山灰在平流层造成的视觉效果
形容词视力的；视觉的；光学的；有助于视力的网络光纤；眼的；光的