英语词汇mass defect怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	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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