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• Atomic clock
  ...ated by radio signals (commonly but inaccurately called an "atomic clock")|Radio clock}} ...day (approximately 1 part in 10¹⁴), and a precision set by the radio transmitter [[laser pumping|pumping the maser]]. These clocks collectively
  32 KB (4,699 words) - 14:52, 10 December 2011

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