atomic clock

漢語翻譯

英文解釋：

名詞 atomic clock:

1. a timepiece that derives its time scale from the vibration of atoms or molecules

例句：

1. Such a molecular or atomic clock is now being developed and promises to be very accurate.
   這種分子和原子鐘目前正在發展中，預期能有很高的準確度。