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单词 Planck's constant
释义
Planck's constantˌPlanck’s ˈconstant noun [uncountable] (symbol h) science, physics a unit that is used in quantum mechanics, equal to 6.626 × 10 to the -34 joule-seconds. This is the ratio of the energy of a photon to its frequency.
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更新时间:2025/3/21 11:59:55