基本解释[物理学]特征ｘ辐射英汉例句双语例句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；characteristic x-radiation更多例句专业释义物理学特征ｘ辐射