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national primary frequency standard
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national primary frequency standard
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national primary frequency standard
秒长国家计量基准
直接复现秒定义的实验装置。输出的标准频率具有最高计量学特性,作为统一全国秒长量值(频率量值)最高依据的计量器具,全国只有一套。
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cooperative adaptive cruise control
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cooperative agent
cooperative anomaly of specific heat
cooperative breeding
cooperative caching
cooperative cataloguing
cooperative cocoon selling
cooperative collection development
Cooperative Commonwealth Federation
cooperative communication
cooperative community
cooperative computing
cooperative control
cooperative control of multiple pollutants
Cooperative corporate entrepreneurship
cooperative diffusion
cooperative economic organization of herdsmen
cooperative economy in socialist society
cooperative education of kindergarten and home
cooperative effect
cooperative effect of allosteric enzyme
cooperative emission
cooperative evolutionary game
cooperative financial system
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