| 单词 | electron radius |
| 释义 | electron radius [i`lek´trän `rād·ē·ǝs] PHYSICS The classical value r of 2.81777 × 10-13 centimeter for the radius of an electron; obtained by equating mc2 for the electron to e2/r, where e and m are the charge and mass of the electron respectively; any classical model for an electron will have approximately this radius. |
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