科研之友
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<正>Lenses,such as optical lens,electron lens,acoustic lens and so on,are devices that can focus waves to form an image.Since the invention of telescopes and objectives,optical lenses play important roles in observing objects from molecular to astronomical levels,and high-resolution lithography using optical,electron or X-ray beams.To improve the imaging quality,usually,the multiple
- 出版日期2018-3-30
