英语词汇“crossed-h”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	crossed-h
释义	crossed-h crossed-h (ˌkrɒstˈaɪtʃ) n (General Physics) 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. Also called: Dirac constant
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