optics
柯林斯詞典
1. N-UNCOUNT Optics is the branch of science concerned with vision, sight, and light. 光學(xué)→see also fibre optics
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optics /??pt?ks/
劍橋詞典
optics noun [U] (LIGHT)
the study of light and of instruments using light
光學(xué) 返回 optics