| 单词 | muon |
| 释义 | Word Frequency muon(ˈmjuːɒn) noun a positive or negative elementary particle with a mass 207 times that of an electron and spin1⁄2. It was originally called the mu meson but is now classified as a lepton Derived forms muonic (mjuːˈɒnɪk) adjective Word origin C20: short for mu meson |
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