英语语法分析

Objective To study the mechanism and difference of fractured vertebral body 's prevertebral height recovery following different methods of reduction.

目的分析不同复位方式对恢复伤椎椎前高度的机制和差异。

Objective: to investigate the anatomic relationship between prevertebral fascia and carotid sheath and to guarantee the safety of the common carotid artery in anterior cervical approach.

目的：研究颈动脉鞘和椎前筋膜的解剖关系，提高颈椎前路手术中对颈总动脉的安全性。