单词 | Paschen series |
释义 | Paschen series/ˈpaʃ(ə)n /noun Physics A series of lines in the infrared spectrum of atomic hydrogen, between 1.88 and 0.82 micrometres.The Paschen series describes transitions from a higher level down to n = 3....
Origin1920s: named after L. C. H. Friedrich Paschen (1865–1947), German physicist. |
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