英语词汇“mass defect”是什么意思，“mass defect”的读音、用法及例句翻译-烛光网

词汇	mass defect
释义	mass defectn.（名词） The amount by which the mass of an atomic nucleus is less than the sum of the masses of its constituent particles. Also called mass deficiency 质量亏损：同位素的质量与其用原子质量单位表示的质量数之差也作 mass deficiency
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