... 特殊监测 special monitoring 特征X辐射 characteristic X-radiation 特征γ射线常数 specific gamma-ray constant ...
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The law of characteristic X-rays emitted by target element under the radiation of isotope source in a range of low energy is discussed.
介绍了在低能范围内利用放射性同位素源发出的初级射线，照射和激发靶片元素产生的特征X射线的规律性；
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Most diffuse X-ray sources in the Universe have a characteristic temperature because they represent the residual radiation from an event, such as a supernova.
BBC: Arches Cluster, Leicester
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