英语词汇“fine-structure constant”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

fine-structure constant

noun Physics

A fundamental and dimensionless physical constant, equal to approximately 1/137, which occurs in expressions describing the fine structure of atomic spectra.Some of these constants, such as the fine-structure constant, are dimensionless and are not expressed in terms of units....

The researchers concluded that the fine-structure constant might well be constant, and that the variation seen in the prior work was highly unlikely.
Even atomic clocks can detect drifts in the fine-structure constant only over days or, at most, years.

单词	fine-structure constant
释义	fine-structure constant noun Physics A fundamental and dimensionless physical constant, equal to approximately 1/137, which occurs in expressions describing the fine structure of atomic spectra.Some of these constants, such as the fine-structure constant, are dimensionless and are not expressed in terms of units.... The researchers concluded that the fine-structure constant might well be constant, and that the variation seen in the prior work was highly unlikely. Even atomic clocks can detect drifts in the fine-structure constant only over days or, at most, years.
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