optics [i 1ptiks | 9p` ]    (¼øÀ§: 9283 - ´ëÇÐ ¼öÁØ)  
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Mean The branch of physics that deals with light and vision, chiefly the generation, propagation, and detection of electromagnetic radiation having wavelengths greater than x-rays and shorter than microwaves.
ÆÄ»ý¾î optical  [Çü]
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