英语语法分析

Objective:To investigate the effect of tympanoplasty with three flaps.

目的：探讨三瓣法制备移植床对鼓膜成形术的影响。

Objective: To study the surgical effect of tympanoplasty for chronic otitis media suppurative.

目的：探讨鼓室成形术治疗慢性化脓性中耳炎的手术疗效。

Objective To treat cholesteatoma of posterior part of mesotympanum and one stage tympanoplasty.

目的观察中鼓室后部胆脂瘤并一期鼓室成形术的疗效。