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time and frequency standard |
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A reference value of time and time interval. Standards of time and frequency are determined by astronomical observations and by the operation of atomic clocks and other advanced timekeeping instruments. They are disseminated by transport of clocks, radio transmissions, satellite relay, and other means. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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