X-ray fluorescence absorption

例句：

1. 1.X-ray fluorescence absorption is a technique used to detect the presence of certain elements in materials.
   X射线荧光吸收是一种用于检测材料中某些元素存在的技术。
2. 2.In this study, we used X-ray fluorescence absorption to analyze the chemical composition of the sample.
   在这项研究中，我们使用X射线荧光吸收来分析样品的化学成分。
3. 3.The X-ray fluorescence absorption method has been widely used in the analysis of minerals and rocks.
   X射线荧光吸收方法在矿物和岩石的分析中得到了广泛应用。