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单词
b-s meson
释义
B-s meson
B-s meson
B5533450
(bē′ĕs′)
n.
An electrically neutral meson composed of a strange quark and a bottom antiquark and having a mass about 10,500 times that of an electron and a mean lifetime of about 1.5 × 10
-12
second.
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更新时间：2025/6/9 20:29:18