英语语法分析

In the meanwhile, as tell us how to use the sect Rheum resources.

同时为波叶组大黄资源利用奠定了基础。

The trace element has an important function for the growth of cultivated Rheum.

微量元素对于种植青海大黄的生长发育有着重要作用。

Objective: To study the extracting conditions and purification process parameters of Rheum.

目的：研究大黄提取纯化的工艺条件及参数。