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照射量基准
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照射量基准
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照射量基准
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primary standard of exposure
照射量基准
复现X射线(5~300千伏)和γ射线(137Cs, 60Co)照射量量值,用于标准和工作级计量器具的量值传递。
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daimyo oak
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Dai Opera Protect and Performance Center of the Dehong Dai and Jingpo Autonomous Prefecture
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