atomic rotation 原子旋光度 ; 原子旋转
rotation atomic
旋转的原子
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Over a few decades this would amount to a minute's difference, but over several hundred years this would mean the atomic clock time-scale and the time-scale based on the Earth's rotation would be out by an hour.
BBC: Changes to the world's time scale debated
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