单词 | extra-spectral |
释义 | > as lemmasextra-spectral extra-spectral adj. Brit. /ˌɛkstrəˈspɛktr(ə)l/ , U.S. /ˌɛkstrəˈspɛktrəl/ lying outside the visible spectrum.ΚΠ 1849 M. Somerville On Connexion Physical Sci. (ed. 8) xxiv. 236 There are three extra-spectral lines beyond the red. < as lemmas |
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