Cesium Atomic Clock Accuracy

National Institute Of Standards & Technology    

Gaithersburg, 美国 中的 联邦政府机关
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We are the National Institute of Standards and Technology (NIST), a non-regulatory federal agency within the U.S. Department of …

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常见问题解答

问:
What does the SHIP acronym stands for?
答:
Summer High School Internship Program
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糟糕! 出现问题了,请几分钟后再试
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