英语语法分析

To study the optimal process of the extraction of tannic acid from Chinese gallnut.

从五倍子中提取单宁酸，通过正交实验优化筛选出最佳工艺。

Recovery tests of standard addition in Chinese gallnut samples showed an average recovery of 100. 6%.

在中药五倍子浸提液中用标准加入法进行回收实验，其平均回收率为100.6%。

The method has been used to determine the content of gallic acid in Chinese medicine gallnut with satisfaction.

该方法用于测定中药没食子中没食子酸的含量，结果令人满意。