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单词
d-s meson
释义
D-s meson
D-s meson
D5420350
(dē′ĕs′)
n.
A positively charged meson composed of a charm quark and a strange antiquark and having a mass 3,852 times that of an electron and a mean lifetime of about 5.0 × 10
-13
second.
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更新时间:2025/1/10 9:18:20