| 单词 | line spectrum |
| 释义 | line spectrum (once / 1477414 pages) n WORD FAMILY line spectrum USAGE EXAMPLESThis effect is perhaps best witnessed on viewing a line spectrum such as that of the mercury arc, focused upon a ground glass. Luckiesh, Matthew, Visual Illusions—Their Causes, Char...(2011) The positive rays show, when the pressure is not very low, the line spectrum of the gas through which they pass. Various, Encyclopaedia Britannica, 11th Edit...(2010) It follows that a purely gaseous body, such as would emit a characteristic bright line spectrum, would not be subject to the repulsion. Various, Encyclopaedia Britannica, 11th Edit...(2010) n a spectrum in which energy is concentrated at particular wavelengths; produced by excited atoms and ions as they fall back to a lower energy level Hyper spectrum an ordered array of the components of an emission or wave |
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