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ru atom frequency standard
星载铷钟
由铷量子部分和压控晶体振荡器组成的铷原子钟。可以作为频率标准,产生高稳定度、低漂移率的单频正弦信号。又称铷原子频标。
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distribution of errors
distribution of ethnic geography
distribution of exponential type
distribution office of newspapers and periodicals
distribution of finite energy
distribution of food, money and materials to disaster-stricken people
distribution of fund
distribution of heat production in the crust
distribution of incident solar irradiance at the top of the atmosphere
distribution of industry
distribution of integral points
distribution of mineral resources
distribution of mine ventilation quantity
distribution of national income
distribution of nuclear density
distribution of nuclear matter
distribution of order statistics
distribution of population
distribution of power non-residues
distribution of power residues
distribution of prime numbers
distribution of prime numbers in an arithmetic progression
distribution of primes
distribution of productive forces
distribution of rapeseed
科学参考收录了854744条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。
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