单词 | UVB |
释义 | UVB (y′vē′bē) n. Ultraviolet radiation that is found in sunlight, has a wavelength between 290 and 320 nanometers, and can cause damage to the skin including sunburn, tanning, premature aging, and cancer. [u(ltra)v(iolet) B (the letter B being used to designate the second of the categories based on wavelength in which ultraviolet radiation is classified).] |
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