单词 | metallic-line |
释义 | > as lemmasmetallic-line metallic-line adj. Astronomy designating a main-sequence star whose spectrum shows unusually strong absorption lines for many of the heavier elements, including rare earths. ΚΠ 1943 W. W. Morgan et al. Atlas Stellar Spectra 19 (heading) The metallic-line stars. 1992 S. P. Maran Astron. & Astrophysics Encycl. 730/2 Among the dwarfs,..the slowly rotating classical metallic-line A stars are generally stable or show only very small amplitudes of a few thousandths of a magnitude. < as lemmas |
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