| 单词 | electronvolt | 
| 释义 | electronvolt [i`lek´trän ´vōlt]  PHYSICS A unit of energy which is equal to the energy acquired by an electron when it passes through a potential difference of 1 volt in a vacuum; it is equal to (1.602192±0.000007) × 10-19 volt. Abbreviated eV.  | 
	
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