sequential extraction造句

the paper dissertates the conception of element bioavailability, introduces the method of sequential extraction and single extraction to reveal element availability, reviews some problems profoundly correlated with element bioavailability
文章论述了元素生物有效性的含义，介绍了元素有效性的研究方法，即连续偏提取法和单提取法，并对一些相关问题进行了深入的分析讨论。
It's difficult to find sequential extraction in a sentence. 用sequential extraction造句挺难的