1990年，第一台天基光学望远镜——哈勃太空望远镜——成功发射，拍摄了最深的、最精细的宇宙可见光景象。
In 1990, the first space-based optical telescope, the Hubble space telescope, was launched, providing the deepest, most detailed visible-light view of the universe.
电子显微镜让研究者和临床医生得以进入一个光学显微镜无法窥见的小宇宙。
Electron microscopy grants researchers and clinicians access to a universe that is too small to be detected using light-based microscopes.
光粒子是宇宙中速度最快的东西，所以一台光学计算机在理论上可以在计算机启动前就能处理完信息。
These particles of light are the fastest things in the universe, so an optical computer could theoretically process information at speeds that make even a supercomputer look glacial.
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