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columbium
释义
WordReference Random House Unabridged Dictionary of American English © 2024
co•lum•bi•um
(kə lum
′
bē əm),
USA pronunciation
n.
[
Chem.
]
Chemistry
(formerly) niobium.
Symbol:
Cb
Columb
(
ia
) (def. 7) + -
ium
1801
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更新时间:2026/6/15 14:27:32