出典:Wiktionary
spectrograph (複数形 spectrographs)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/03 15:43 UTC 版)
A spectrograph is an instrument that separates an incoming wave into a frequency spectrum. There are several kinds of machines referred to as spectrographs, depending on the precise nature of the waves. The term was first used in 1884.
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