| 单词 | absorption band |
| 释义 | > as lemmasabsorption band absorption band n. Physics a dark region in the spectrum of electromagnetic radiation transmitted through a substance, due to absorption in a particular range of wavelengths; cf. absorption spectrum n. ΘΚΠ the world > matter > light > darkness or absence of light > [noun] > dark region in spectrum of white light absorption band1852 1852 Philos. Trans. (Royal Soc.) 142 489 The places of the more conspicuous bands of absorption were indicated by dark teeth... The places of the absorption bands Nos. 1, 2 and 4, were perfectly evident. 1919 Chem. Engineer Mar. 74/1 The intensity and breadth of the absorption bands of the various dyes are, in general, less in the ultra violet than in the visible part of the spectrum. 2009 Space Daily (Nexis) 3 Apr. Dust clouds can smooth out many of the spectral features that would otherwise be there—including water absorption bands. < as lemmas |
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