目的：探索桡骨头与桡骨颈成角移位骨折的手术复位和内固定方法的改进与效果。
Objective: To improve the surgical technique for reduction and internal fixation of radius head and radius neck fracture with angular displacement.
其中前臂骨折成角畸形、旋转畸形、侧方移位是临床常见的引起旋转功能障碍的因素。
The deformities of angulation, rotation and lateral displacement of the fracture of ulnar and radius also influenced the function of rotation of forearm, which showed commonly in clinic.
结果：单一钛小夹板沿中线固定下颌角区、体部颏孔区及正中联合区骨折骨断端均产生较大的弯曲及扭转移位。
Results: a large bending and torsion displacement was founded in Angle, body and symphyseal fracture fixed by a single titanium mini-plate along the middle line.
目的探讨肩胛盂移位及成角在肩胛颈骨折治疗中的意义。
Objective To explore significances of displacement and angulation of the glenoid in treatment of the scapular neck fracture.
本文首次定义和推导了移位切比雪夫多项式(第一类和第二类)的分离矩阵，它具有简洁的递推关系和三角形结构。
The separative matrices of shifted Chebyshev polynomials of the first and second kinds, which have a nice structure and an elegant recursive formula, are introduced at the first time.
双三角钻臂属于直接定位钻臂，在工作区间可将钎头直接移位到目标位置。
Double triangle boom is a kind of directly positioning mechanism, it can remove the drill rod to a target position directly in its operating range.
双三角钻臂属于直接定位钻臂，在工作区间可将钎头直接移位到目标位置。
Double triangle boom is a kind of directly positioning mechanism, it can remove the drill rod to a target position directly in its operating range.
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