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uranium 239
释义
WordReference Random House Unabridged Dictionary of American English © 2024
uranium 239,
[
Chem.
]
Chemistry
the uranium isotope with a mass number 239. It is artificially produced by the neutron bombardment of uranium 238. Also called
U-239, U 239.
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更新时间:2026/3/23 6:49:33