| 单词 | mass defect |
| 释义 | mass defect【化】 质量亏损【医】 质量亏损 mass defect mass defect n.（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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