常见例句双语例句Overall, a Grade-C recommendation can be made for the use of countersunk headless screws, directed anterior to posterior, for the fixation of coronal shear fractures.总之,在冠状面剪力骨折固定中前-后方向上应用埋头螺钉其制定的推荐级别为C级。 返回 headless screw