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单词 UVC
释义 UVC
\-ˈsē\ noun
: the region of the ultraviolet spectrum which extends from about 200 to 280 nm in wavelengths and from which comes radiation that is more hazardous than UVB ; also : such radiation from the Sun that is mostly absorbed by earth's upper atmosphere
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更新时间:2024/9/22 6:55:51