... 透视图法 perspective drawing 透视形 perspective figures 透视几何 perspective geometry ...
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在第二节里阐述了配光光形的计算，其中涉及透视变换理论和层的概念。
In the second section, calculation the light shape is introduced, the concept of layer and the theory of perspective transform are adopted.
方法：腓骨骨折半管形钢板固定或透视复位，逆行克氏针髓内固定。
Methods: In case of fibular fracture, fixation of half cast plate or retrograde Kirschner's wire fixation after reduction under fluoroscopy were recommended.
结论：C形臂x线透视下分步引导上中胸椎椎弓根螺钉植入，是一种能提高上中胸椎椎弓根螺钉植入的简单经济、确实可行的方法。
Conclusion: the implantation of upper-middle thoracic pedicle screw under the guidance of the C-shaped arm X-ray perspective is a simple and feasible method, and improve the accuracy and safety.
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