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Ââåäèòå ñëîâî:




ÝÒÀËÎÍ ×ÀÑÒÎÒÛ

Áîëüøîé Ýíöèêëîïåäè÷åñêèé ñëîâàðü - "ÝÒÀËÎÍ ×ÀÑÒÎÒÛ"

ÝÒÀËÎÍ ×ÀÑÒÎÒÛ, ìåðà ÷àñòîòû, îáëàäàþùàÿ íàèáîëåå âûñîêîé äîñòèæèìîé òî÷íîñòüþ. Ýòàëîíîì ÷àñòîòû ñëóæàò êâàðöåâûå ãåíåðàòîðû ýëåêòðè÷åñêèõ êîëåáàíèé, ñòàáèëèçèðóåìûå êâàíòîâûìè ãåíåðàòîðàìè, â êîòîðûõ èñïîëüçóþòñÿ êâàíòîâûå ïåðåõîäû àòîìîâ Cs, Rb èëè ìîëåêóë NH3. Îáåñïå÷èâàþò íàèâûñøóþ ñðåäè ýòàëîíîâ âîñïðîèçâîäèìîñòü ôèçè÷åñêîé âåëè÷èíû.


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"ÝÒÀËÎÍÈÐÎÂÀÒÜ" ÷òî ýòî
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"ÝÒÀËÎÍÍÎÅ ÂÐÅÌß" îïðåäåëåíèå
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"ÝÒÀÍÎËÀÌÈÍÛ" - ýòî...
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"ÝÒÀÏÈÐÎÂÀÍÈÅ" ñëîâàðü