- a fundamental constant equal to the energy of any quantum of radiation divided by its frequency. It has a value of 6.62606876 × 10–34 joule seconds
| 单词 | planck's constant |
| 释义 | WordReference Random House Unabridged Dictionary of American English © 2024 Planck's′ con′stant, [Physics.]
Collins Concise English Dictionary © HarperCollins Publishers:: Planck constant, Planck's constant n
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