英语语法分析

Methods 34 consecutive patients were implanted HA piece or medpor under the periosteum. Using exophthalmometer to measure the degree of lid sinking before and after operation.

方法对34例患者行羟基磷灰石骨板或高密度聚乙烯垫入眼座下矫正上睑沟凹陷，用眼球突出计测量凹陷程度。