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单词
packing fraction
释义
WordReference Random House Unabridged Dictionary of American English © 2024
pack
′
ing frac′tion,
Physics
Physics.
a measure of the stability of an atomic nucleus, equal to 10
4
multiplied by the mass defect and divided by the mass number.
1925–30
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更新时间:2025/7/23 12:39:12