英语语法分析

The performance of tension pneumothorax What is this?

张力性气胸的表现是什么？

Objective: To investigate the etiology, pathogenesis and management of newborn pneumothorax.

目的：探讨新生儿气胸的原因，发生机理和治疗方法。

Objective To investigate clinical characters, treatment and prognosis of spontaneous pneumothorax.

目的探讨自发性气胸的临床特点、处理及预后。