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ul·tra·vi·o·let AHD[ŭl'trə-vīʹə-lĭt] D.J.[ˌʌltrəˈvaɪəlɪt]K.K.[ˌʌltrəˈvaɪəlɪt]adj.（形容词）abbr. UV, U.V.【缩写】- Of or relating to the range of invisible radiation wavelengths from about 4 nanometers, on the border of the x-ray region, to about 380 nanometers, just beyond the violet in the visible spectrum.紫外光的，紫外线的：刚刚超过可见紫光并在X射线区域边上，从大约4毫微米到380毫微米之间的不可视辐射波长的或与之有关的
n.（名词）- Ultraviolet light or the ultraviolet part of the spectrum.紫外光，紫外线的：紫外光或光谱的紫外线部分
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