| 单词 | h-bar |
| 释义 | h-bar in British English (ˈeɪtʃˌbɑː) noun another name for Dirac constant Dirac constant in British Englishnoun a constant used in quantum mechanics, equal to the Planck constant divided by 2π. It has a value of 1.054571596±0.000000078 × 10–34 joule seconds Symbol: ħ, ẖ. Also called: crossed-h, h-bar |
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