英语语法分析

Objective: To observe chemical stability of Osthole in a compound preparation.

目的：考察蛇床子素在制剂中的稳定性。

To summarize the pharmacological effects of Osthole and the progress of Osthole research as a biological pesticide.

综述了蛇床子素的药理作用和作为生物农药的研究进展。