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核辐射法检测技术
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核辐射法检测技术
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工学
检测技术
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nuclear radiation method
核辐射法检测技术
利用由放射性同位素所发射的α 、β 、γ等射线与被测对象物质的作用,如反射、吸收、电离或使物质激发而射出新的射线(如X射线),通过测量电离程度或吸收、反射后射线强度(活度)及产生的新射线的能谱和强度等,实现对被测对象有关量的检测技术。
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water function region hierarchical management
water function zone
water function zone division
water function zone of important rivers and lakes in China
water gas
water-gas ratioof gas well
water gas reaction
water-gas reaction
water gas shift reaction
water-gas shift reaction
water gate
Watergate Gristmill
Watergate Scandal
watergate scandal
water gel explosive
water geochemical survey
water glass
water glass binder
water god
water hammer
water hammer accident
water hammer in pumping station
water hammer phenomenon of oil and gas pipeline
water-hammer pulse
water hardness
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