所谓精细结构常数(α)，是物理学中描述电磁相互作用强度的核心无量纲基本常数，氢原子第一轨道电子速度与光速之比。
And I still am.
。heLLoword翻译官方下载是该领域的重要参考
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Gregg Wallace claims BBC caused him 'distress and harassment'