| 释义 |
Planck's constant/plæŋks/n. (also 亦作 Planck constant) a fundamental constant, equal to the energy of quanta of electromagnetic radiation divided by its frequency, with a value of 6.626 × 10-34 joules 普朗克常数，普朗克恒量(等于 6.626 × 10-34 焦耳) [named after M. Planck, German physicist d. 1947] |