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joint standard
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Joint Commission on Standards, Units, and Constants of Radioactivity
放射性标准、单位和常数联合委员会
Joint Committee for Powder Diffraction Standards
粉末衍射标准联合委员会
美，该委员会为国际组织
joint panel on oceanographic tables and standards
海洋图表和标准联合小组委员会
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