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单词
charmonium
释义
char·mo·ni·um
\chärˈmōnēəm\
noun
(
plural
charmonium
)
Etymology:
charm
(herein) +
-onium
(as in
positronium
)
:
any of a group of fundamental particles that are held to consist of a charmed quark-antiquark pair
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更新时间:2025/9/20 18:41:19