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单词 finsen unit
释义 finsen unit
[`fin·sǝn ´yü·nǝt]
ELECTROMAGNETISM
A unit of intensity of ultraviolet radiation, equal to the intensity of ultraviolet radiation at a specified wavelength whose energy flux is 100,000 watts per square meter; the wavelength usually specified is 296.7 nanometers. Abbreviated FU.
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