| 单词 | fine structure |
| 释义 | fine structure[ fahyn ] / faɪn / noun Physics.a group of lines that are observed in the spectra of certain elements, as hydrogen, and that are caused by various couplings of the azimuthal quantum number and the angular momentum quantum number. Compare hyperfine structure. Origin of fine structureFirst recorded in 1915–20 Words nearby fine structurefines herbes, finespun, finesse, finest, finestra, fine structure, fine-tooth comb, fine-tune, finfish, finfoot, fin-footed Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for fine structurefine structure nounthe splitting of a spectral line into two or more closely spaced components as a result of interaction between the spin and orbital angular momenta of the atomic electronsCompare hyperfine structure Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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