a fundamental and dimensionless physical constant, equal to approx. 1/137, which occurs in expressions describing the fine structure of atomic…
| 单词 | θ78970 |
| 释义 | the world > matter > physics > atomic physics > decomposition of light, spectrum > [noun] > multiplets in atomic spectra > constant of (2) fine-structure constant1923 a fundamental and dimensionless physical constant, equal to approx. 1/137, which occurs in expressions describing the fine structure of atomic… coupling constant1949 any constant which represents the strength of the interaction between a particle and a field. |
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