随着截平面位置的改变，可以在锥面上截出形状不同的椭圆。
We can obtain ellipses of different shapes by intersecting a cone with a plane in different relative positions.
根据三维造型数据，采用基于等距面的截平面法进行精加工。
According to the geometrical data of a three-dimensional model, finish machining strategy with section plane method is adopted on the basis of the offset surface.
本文以一般位置平面为辅助截平面，用求迹线方法，在一个视图求作两单曲面偏交交线。
With the ordinary camber used as auxiliary cross section, the line of intersection of two biasing single cambers is worked out in a view with the method for line of nodes.
要记得，在这里的fx中,是作为常量保持不变的。，looking，at，the，situation，where，y，is，held，constant。,这是我用一个平行于xz坐标系的平面,横截了f，所得到的图形。
Remember, partial f, partial x was obtained by y That means I am slicing the graph of f by a plane that is parallel to the x, z plane.
接下来，我们的任务就是将平面与拼接曲面的有效部分相交所得截线参数化。
Then our task is to parameterize the intersection of and the valid part of for some fixed .
在特定条件下，椭圆锥与平面的截交线为圆。
Under definite conditions, the intersection of an elliptic cone with a plane is a circle.
然而，外侧闭合楔形截骨和梯形截骨都被广泛使用并取得满意的结果，仅仅纠正冠状平面畸形。
However, lateral closing-wedge osteotomy and step-cut osteotomy, both of which have been used extensively with satisfactory outcomes, correct only in the coronal plane.
提出一种将辅助平面旋转某个特定的角度图解正椭圆锥面截交线的方法。
The paper presents the graphic method of solution of the intersection of right elliptic cone with plane by rotation of auxiliary planes at a certain Angle.
目的观察一次性多平面全脊柱截骨配合通用脊柱内固定系统内固定治疗脊柱后凸的疗效。
OBJECTIVE: To introduce a method to treat kyphosis with universal spine system and to evaluate its clinical effect.
目的观察一次性多平面全脊柱截骨配合通用脊柱内固定系统内固定治疗脊柱后凸的疗效。
OBJECTIVE: To introduce a method to treat kyphosis with universal spine system and to evaluate its clinical effect.
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