英语语法分析

The preparation of tetramisole free alkali was studied with anti addition method.

采用反加法对四咪唑游离碱的制备进行了实验研究。

The tetramisole molecular have optical activity. The traditional method is time and cost consuming to decide the rotatory direction and the value of optical rotatory.

四咪唑分子具有光学活性，为了确定旋光度的大小和方向，使用传统方法既耗时又不经济。

Since Tetramisole Hydrochloride and Levamisole Hydrochloride have the same chemical structure, the preparation made of these two chemical materials have identical physicochemical properties.

盐酸噻咪唑与盐酸左旋咪唑具有相同的化学结构，所以由两种化学原料制成的制剂具有相同的理化性质。