成角透视
- 网络Angular perspective;Complementary angle-perspective
成角透视-
撇开灭点的成角透视图作图方法及正确性验证
The Method of Angular Perspective Without View Points and Its Demonstration
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本文介绍一种不受灭点远近限制的成角透视图法，并对其进行几何论证。
This paper introduces a method that we can apply it to draw angular perspective without view points , and it demonstrates this method according to the geometric principles .
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手术时局麻，后正中线旁8～10cm处进针，进针方向与躯干矢状面成45°角，透视下确认位置。
Under local anesthesia , the instruments were inserted at a 45 degrees angle sagital to the trunk , and the entry point was located 8 to 10 cm from the midline .