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单词 extra-spectral
释义

> as lemmas

extra-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.
extracted from extra-prefix
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as lemmas
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