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prompt gamma-ray neutron activation analyzer
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prompt gamma-ray neutron activation analyzer
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辐射型元素分析仪
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prompt gamma-ray neutron activation analyzer
瞬发γ射线中子活化分析仪
利用反应堆、加速器或同位素中子源产生的中子轰击被测样品,样品中原子核与中子发生核反应在极短的时间内,释放出不同能量(2千~10兆电子伏特)的特征γ射线,根据特征γ射线的能量以及强度对元素种类及含量进行实时在线测量的装置或仪器。
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expansion of fixed assets investment
expansion of genetic code
expansion of the universe
expansion option
expansion parameter
expansion planning for electrical generating system
expansion rate
expansion ratio
expansion refrigeration
expansion rule
expansion silencer
expansion slot
Expansions on Three Theories: On Poetry
expansion test
expansion theorem
expansion thermometer
expansion time-scale
expansion tong
expansion turbine
expansion type temperature measurement
expansion valve
expansion wave
expansion wave of reflection and intersection
expansion work
expansive
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