Odontoid fracture treated by anterior screw fixation .

前螺钉固定术治疗齿状突骨折。

Application of anterior chamber maintainer in various cataract surgeries .

前房维持器在各种白内障手术中的应用。

Anterior screw fixation of dens fracture .

齿状突骨折前路螺钉固定术。

Situated anterior to the frontal bone .

前额骨的位于额骨前部的。

H --- as a player approached a violent encounter , part of his brain called the anterior cingulate cortex became active .

当一个玩家开始一场暴力遭遇战时，他大脑中称为前扣带脑皮质的部分开始活跃。