英语词汇“frequency standard, primary”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	frequency standard, primary
释义	Frequency Standard, Primary Frequency Standard, Primary (Russian, etalon chastoty), a frequency measure that reproduces a unit of frequency with the greatest accuracy achievable at the time. It differs from a secondary frequency standard (standart chastoty) in that the error has been more closely studied and its use is more strictly regulated. (SeeQUANTUM FREQUENCY STANDARDS.)
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Frequency Standard, Primary