英语语法分析

Firstly. Based on the morphology of the oocysts and experimental infection, the coccidial species were investigated and identified from 16 domestic gooseries in Gaoyou-county Jiangsu province.

首先，采用卵囊形态结构特征观察与回归动物试验相结合的方法，对江苏省高邮市家鹅感染球虫的种类进行了调查与鉴定。