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Ultraviolet - Wikipedia, the free encyclopedia
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日期:2025-06-06
Ultraviolet (UV) light is electromagnetic radiation with a wavelength shorter than that of visible light, but longer than X-rays, that is, in the range between ~310 nm and 100 nm, corresponding to photon energies from 4 eV to 12.4 eV. It is so-named becau...看更多