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康普顿散射密度测量法
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康普顿散射密度测量法
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理学
核分析技术
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Compton scatter densitometry
康普顿散射密度测量法
利用射线(X射线或γ射线)与物质的原子核外电子相互作用时产生的康普顿效应来测量物体密度的方法。
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national occupational health standards
national occupational health supervision and management system
National Oceanic and Atmospheric Administration
National Oceanic and Atmospheric Administration(US)
National Oceanic Resource Management Authority
National Oceanic Survey
National Oceanography Centre
National Office for Planning of Arts and Sciences
national office for promoting the rise of central China
National office of Water Conservation
National Olympic Committees,NOC
National Olympic Sports Centre
National Open University Audio & Visual Press
National Open University Press
National Opera of Chile
National Opera of Ukraine
National Opera School
National Optical Astronomy Observatory
national optical font
national or ethnic question for period of democratic revolution in China
National Orienteering Championships
National Outstanding Children's Literature Award
national overall emergency plan of China
National Palace Museum of Korea
national park
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更新时间:2026/9/14 16:12:24