| 单词 | mass defect |
| 释义 | mass defect (extremely rare) n WORD FAMILY mass defect USAGE EXAMPLESDepending on the element the mass defect can be negative or positive. Nature(May 24, 2016) In case of oxygen the mass defect is negative, so that a slope downwards represents an increase in oxygen molecules. Nature(May 24, 2016) n the amount by which the mass of an atomic nucleus is less than the sum of the masses of its constituent particles Syn|Hyper mass deficiency mass the property of a body that causes it to have weight in a gravitational field |
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