英语语法分析

Objective To develop a valid mathematic model for the research of the neutral zone(NZ) in craniovertebral junction.

目的为枕颈部中性区（NZ）的研究建立有效的数学模型。

O-C fusion with correction of kyphosis at the craniovertebral junction has the potential to improve sleep apnea in RA patients.

RA患者行颅颈关节的脊柱后凸矫正的枕颈融合具有潜在引起睡眠呼吸暂停。

Objective To observe the effect of improved body turning approach on wound healing after operation of congenital craniovertebral junction abnormity.

目的探讨改进翻身法对先天性颅颈交界区畸形术后伤口愈合的影响。