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瞬发γ射线中子活化分析仪
释义
瞬发γ射线中子活化分析仪
Encyclopedia
工学
辐射型元素分析仪
释
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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The New York Review of Books
The New York Times
The New York Times Book Review
The New York Trilogy
The New Zealand Film Commission
Theniet El Had National Park
The Night Frontier
The Nightingale Prize
The Night Manager
The Nightmare Before Christmas
The Night of Catching the Tiger
The Night of Shanghai
The Night Revels of Han Xizai by Gu Hongzhong (Song Copy)
The Night Sacrifice of Ulan Bulang
The Nine Chapters poem
The Nine-dashed Line in the South China Sea
the Nine Elders of Mount Hua
The Nine Heavens Saintly Mother Temple
the nine moralities
The Nine Palaces and the Taoist Cult
the nine periods(of nine days each)following the winter(summer)solstice
The Nine-tailed Turtle
The Nineteen Articles-Constitution
The Ninteenday Feast
The Niue Treaty on Cooperation in Fisheries Surveillance and Law Enforcement in the South Pacific Region
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