旋转关节

But they are not effectie against translatory or rotatory forces, and a high failure rate has followed.12–14 In order to increase the stability, Magerl and Seeman added transarticular C1–C2 screws, which hae mechanical adantage and lead to a higher fusion rate (range,87%–98%).15–19 We found that all the reports in the recent English literature were screws combined with wires or clamps.

这些方法不能提供对抗横移和旋转力两，有报道的较高失败率12-14。为了提高稳定性，Magerl和Seeman在增加了经关节C1-C2螺钉，该螺钉具有力学优势并能提高融合率（范围在87%~97%）。15~19 我们发现进来的英文文献都是使用的线或椎板钳和螺钉结合的技术。

The locators can be parented to Maya joints so that as your creature#s limbs rotate, the muscle contracts and expands automatically.

把locator子父关系到maya关节，旋转你的模型肢体肌肉伸缩时会自动膨胀。

While the reach pattern is being performed,the scapula protracts and rotates upward by the combination actions of the serratus anterior andupper and lower trapezius muscles.

当伸手动作展开时，前肋骨侧边的肌肉及上下颈部斜方肌会同时收缩使肩胛拉开向上，而旋转环膜会让肱骨呈外旋的姿势，并使得肱骨头置入关节窝。

The shoulder joint, being a ball-and-socket joint, is inherently unstable.

旋转肌袖由四条小肌肉组成，围绕著肩关节

The dart thrower's path defined the transition between flexion and extension rotation of the scaphoid and lunate, and it identified wrist positions at which scaphoid and lunate motion approached zero.

投射过程中的轨迹决定了舟状骨和月骨屈伸和旋转运动，也说明了舟状骨和月骨运动为零的时候腕关节的位置。

This thesis also improves the algorithm of iterative calculation of direct kinematics on two aspects. One is to solve the "floating" problem, which is the change of the leg lengthes when nuts of ballscrews rotate around their own axises.

通过对几类关键受限变量——杆长、关节摆角、倾倒角和旋转角进行相关运动学计算，实现对它们的限位约束；同时，针对因滚珠丝杠螺母副引起的杆长随角度变化而&浮动&的特殊问题，对正向运动学迭代算法进行改进，加快了收敛的速度； 3。

M were applied to produce six kinds of pure moment of force and to create six kinds of movement of the lumbar spine in flexion, extension, left and right lateral bendings as well as left and right axial rotations.

在双侧小关节分级切除状态下，后路螺纹椎间融合器均能显著降低L4-L5节段的前屈、左右侧弯运动范围，但后伸、左右轴向旋转运动只能恢复到完整状态水平。

Methods Twenty-seven patients suffering from mallet finger accompanied by avulsional fracture were treated with Ishiguro method or its modified method. During the operation, a blocking pin was inserted percutaneously with DIP flexed, then the DIP was fixed at a position of full extension with another Kirschner wire. When the fracture fragment was big with rotation displacement, a third Kirschner wire could be used to correct the displacement and fix fracture. Results The patients were followed up 2 months to 6 years and 6 months with an average of 9.3 months postoperatively.

采用石黑法及其改良法治疗27例伴撕脱骨折的锤状指，在透视下运用闭合穿针的方法，在远侧指间关节屈曲位时于背侧插入阻挡针，然后用另一根克氏针将DIP固定于充分伸直位；当较大的骨折块向背侧有旋转移位时，可加用一根克氏针撬拨复位并固定骨折块。

Barbie's shoulder, thigh hip joints are mobile, hidden joints can do 60-degree knee bend, head can be rotated, it put a lot of beautiful shape.

芭比的肩部，大腿髋关节都可以活动，膝关节暗藏关节可做60度弯曲，头可以旋转，很摆出很多漂亮的造型。

The changes of contact stress on the facet joint, maximum slip displacement of the implants on the endplate, and rotational angle of the upper vertebra were investigated under different loading conditions.

计算植入不同椎间融合器在不同负载情况下，对小面关节应力、植入物与终板界面滑动距离与上椎体旋转角度的影响。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。