英语语法分析

Aim to search for a new method to produce more podophyllum substances.

目的寻找扩大获得鬼臼类物质资源的新途径。

This paper is performed on extraction technology, purification and immune function of Podophyllum Emodi polysaccharides(PEP).

本试验对鬼臼多糖（PEP）进行提取和分离纯化、并通过实验研究探讨了鬼臼多糖的药理活性。