英语语法分析

Tocopherol esters are of a great variety and have various pharmaceutical functions.

生育酚酯种类很多，药理功能不尽相同。

The invention relates to a method for separating a single tocopherol from a mixed tocopherol.

本发明涉及一种从混合生育酚中分离出单个生育酚的方法。

Compared to other kinds of vegetable oil, the tocopherol content of wheat germ oil is fairly high.

与其它种类的植物油相比，小麦胚油的天然维生素e含量很高。