英语语法分析

Objective To explore etiopathogenesis of slow transit constipation (STC).

目的探讨慢传输型便秘(STC)的发生机理。

Conclusions Glandularis ureteritis is not frequently seen and the etiopathogenesis is not yet clear.

结论腺性输尿管炎少见，发病机理尚不清楚。

Research of modem medicine on CFS mainly manifests in its etiopathogenesis and the method of model preparation.

现代医学对CFS的研究主要集中在其发病机理及造模方法上。