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actinium series
释义
WordReference Random House Unabridged Dictionary of American English © 2024
actin
′
ium se′ries,
[
Chem.
]
Chemistry
the radioactive series that starts with uranium 235 and ends with a stable isotope of lead of mass number 207.
1955–60
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更新时间:2025/11/26 14:27:23