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单词
radiosodium
释义
WordReference Random House Unabridged Dictionary of American English © 2024
ra•di•o•so•di•um
(rā′dē ō sō
′
dē əm),
USA pronunciation
n.
[
Chem.
]
Chemistry
the radioactive isotope of sodium having an atomic mass of 24 and a half-life of 14.9 hours: used as a tracer in biochemistry.
radio
- +
sodium
1930–35
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更新时间:2025/10/17 20:46:20