| 单词 | absorption line |
| 释义 | > as lemmasabsorption line absorption line n. Physics a dark line in the spectrum of electromagnetic radiation transmitted through a substance, due to absorption at a particular wavelength; cf. absorption spectrum n., Fraunhofer lines n. at Fraunhofer n. ΘΚΠ the world > matter > physics > atomic physics > decomposition of light, spectrum > [noun] > system of absorption bands > dark lines of dark line1802 absorption line1861 the world > matter > physics > electromagnetic radiation > light > chromatism > [noun] > spectrum > band or line forming part of > specific line or lines absorption line1861 triplet1879 furnace line1911 singlet1920 progression1926 1861 Amer. Jrnl. Sci. 82 106 This apparatus..answers equally well for observations on the solar spectrum, on the absorption lines of liquids and gases [etc.]. 1928 D. Brunt Meteorol. v. 39 Each element in the absorbing medium produces its own set of dark absorption lines. 2001 D. Weldrake in P. Moore 2002 Yearbk. Astron. ii. 181 Such a rapid rotation of the star would cause a significant broadening of the stellar absorption lines. < as lemmas |
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