extraction and purity

• 提取纯化

extraction and purity的用法和样例：

例句

1. The extraction and purification technology of geniposide was studied in this paper.
   系统地研究了栀子甙的提取纯化工艺。
2. Study on Extraction and Purification of Polysaccharides from Stem and Leaves of Asparagus officinalis L.
   芦笋茎叶多糖的提取纯化研究。