英语语法分析

Objective To evaluate the killing effect of aluminum phosphide and bromadiolone bait on Spermophilus dauricus, and compare the two agents in terms of their killing effect on rodents.

目的 观察磷化铝、溴敌隆毒饵对达乌尔黄鼠的杀灭效果，并对磷化铝、溴敌隆毒饵的灭鼠效果进行对比。