| 单词 | uv |
| 释义 | > as lemmasU.V. U.V. n. ultraviolet. ΘΚΠ the world > matter > physics > electromagnetic radiation > light > chromatism > [adjective] > ultraviolet ultraviolet1840 Wood1925 U.V.1928 1925 E. H. Russell & W. K. Russell Ultra-violet Radiation & Actinotherapy Index 261/2 Veterinary uses of U.V.R.] 1928 Moderna Språk XXII. 188 Popularly one also hears U.V.-treatment, light treatment, light bath. 1940 A. L. M. Sowerby Wall's Dict. Photogr. (ed. 15) 431 Ultra-violet light is only present in sufficient amounts to be harmful on very clear days at sea-level, or at high altitudes... In such circumstances it should be excluded by a U.V. filter if it is desired to obtain photographs not showing the characteristics associated with the use of the ordinary yellow filter. 1979 Nature 29 Mar. 484/1 The ultraviolet region of the solar spectrum, which has somewhat arbitrarily been divided into three sections—UV-C (wavelength 200–290 nm), UV-B (290–320 nm) and UV-A (320–400 nm). < as lemmas |
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