About CHOU C. W.
About National Inst. Standards and Technol., Colorado, USA
About HUME D. B.
About National Inst. Standards and Technol., Colorado, USA
About KOELEMEIJ J. C. J.
About National Inst. Standards and Technol., Colorado, USA
About WINELAND D. J.
About National Inst. Standards and Technol., Colorado, USA
About ROSENBAND T.
About National Inst. Standards and Technol., Colorado, USA
About Physical Review Letters
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About aluminum compound
About metal ion
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About 光学時計
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About Units,standards,primary standards,constants
About Measuring methods and instruments of time,speed,acceleration,angular veloc?
About 光学
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