| 单词 | near ultraviolet |
| 释义 | > as lemmasnear ultraviolet The ultraviolet part of the spectrum; near ultraviolet, far ultraviolet, the part close to, or far from, the visible spectrum. ΘΚΠ the world > matter > physics > electromagnetic radiation > light > chromatism > [noun] > spectrum > ultraviolet light violet ray1803 ultraviolet1887 1887 Encycl. Brit. XXII. 375/2 A number of lines in the ultra-violet. 1931 Discovery Mar. 86/2 The possibility is discussed of extending the study of the spectrum of stars into the regions of the ultra-violet. 1954 Jrnl. Amer. Chem. Soc. 76 3847/1 Samples of barium and calcium titanates were sealed in quartz tubes containing phosphorus pentoxide for 72 hours and then exposed to ultraviolet. 1962 L. S. Sasieni Princ. & Pract. Optical Dispensing xiii. 326 In snow glare protection is required against the ultra-violet. 1974 Nature 4 Jan. 44/1 At the molecular level, the effects of far-ultraviolet (<300nm) and near-ultraviolet (300 to 420nm) on biological systems are quite different. < as lemmas |
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