Warning: file_put_contents(/www/wwwroot/zidian/biehu.cn/cache/5bc5dfd47a0f582bfdd10306746f4316.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/biehu.cn/index.php on line 58 muon英英字典_muon剑桥英语解释_muon柯林斯英文解释_甲百匯小鸡词典
1. N a positive or negative elementary particle with a mass 207 times that of an electron and spin . It was originally called the mu meson but is now classified as a lepton μ(介)子