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单词
charmonium
释义
WordReference Random House Unabridged Dictionary of American English © 2024
char•mo•ni•um
(chär mō
′
nē əm),
USA pronunciation
n.
[
Physics.
]
Physics
any meson composed of a charmed quark and a charmed antiquark.
charm
1
+
-onium,
probably extracted from
positronium
1970–75
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更新时间:2025/9/22 12:55:12