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Optics is the study of light and vision in science and engineering.
光学是在科学和工程方面对光和视觉的研究。
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Optics is the branch of science concerned with vision, sight and light.
光学是有关视觉、视力和光的一门学科。
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Optics is the branch of science concerned with vision, sight and light.
光学是有关视觉、视力和光的一门学科。
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