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国家测量基准
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国家测量基准
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国家测量基准
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national measurement primary standard
国家测量基准
为了定义、实现、保存或复现量的单位或一个或多个量值,用作参考的实物量具、测量仪器、标准物质或测量系统。又称国家计量基准或国家基准。
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population opportunity window
population parameter
population persistence
population pharmacokinetics,PPK
population planning
population policy
population pressure
population process
population protected mode of medicinal resources
Population pyramid
Population quantity
population random distribution
population recruitment
Population Registers
population regulation
population resource
population-shift algorithm
population size
population sociology
population spatial distribution
population stability
population standard deviation
population statistics
population structure
population subdivision
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更新时间:2026/7/16 6:45:53