| 单词 | Ritz combination principle |
| 释义 | Ritz combination principle /rits/, Physics. the principle that the frequencies of lines in atomic spectra can be represented as differences of a smaller number of terms, all characteristic of the emitting system, interpreted in quantum theory as the emission of exactly one photon in a transition between energy levels. Also called combination principle. [after Walther Ritz (1878-1909), Swiss physicist, who formulated it] |
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