二种最普遍使用正颚手术方法来改善下颚骨前突症的方法是双侧矢向面骨切开术及垂直下颚枝骨切开术。
The two most commonly used surgical techniques to setback a prognathic mandible include the bilateral sagittal split osteotomy and the vertical ramus osteotomy.
并以大量的插图、表格直观地表现这三种不同矢高比时结构的内力特征。
And displays the structure endogenic force characteristic of these three kinds of different vector high ratio intuitively by the massive illustrations and forms.
基于“虚拟腿”的概念，提出了一种新的方法实现仿人型跑步机器人在矢状面内的跑步运动。
A new method based on the "virtual leg" is presented which can realize the running of humanoid running robot in sagittal plane.
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