相交

Base on the principle of analytic geometry, the mathematical model of the intersected pipe s is established in this paper, and the curve of intersection is worked out by numerical analysis.

利用解析几何的原理建立了两管及多管相交问题的数学模型，通过数值分析方法求得了相贯线的几何形状。

It is deemed that to obtain toughened mullite fibre directly in the sintering course by using high temperature phase change of andalusite is feasible.

认为，利用红柱石的高温相交，在陶瓷烧结过程中直接制取莫来石纤维是可行的。

An angle formed at the intersection of the arcs of two great circles.

由两个大圆的弧相交而形成的角。

The pelvis was anatomically reconstructed and SAO was measured as the angle created between the intersection of a line running parallel to the superior surface of the sacrum and a line running between the anterior superior iliac spine and the anterior-superior edge of the symphysis pubis.

取骶骨上骨面平行线于髂前上棘与耻骨联合前缘连线相交，测量交角角度作为骶骨解剖学方向。

Middle English: from Anglo-Norman French, based on Latin cornu 'horn, tip, corner'.

n。 角落，转角，窘境vt。迫至一隅，垄断，使陷入绝境vi。相交成角，垄断

On the basis of OCM, segmentation based on curvature radium is presented in the paper, in which curvature radium is calculated using parametric-surface fitting, and detecting edge points is realized from orthogonal direction, which ensure the integrality of edge points. Since the data is organized by cross-line in OCM, a new arithmetic, Double-direction Angle Difference arithmetic, is brought forward, which can pick up edge points more quickly.

物体的表面一般由多个曲面相交组成，要建立完整的几何模型，需要对测量数据进行区域分割——区分不同曲面的数据，现有的区域分割大多是对单视图的图像式测量数据进行的，但完整的CAD模型需要联合多个视图产生，本文在上面提出的三维正交模型的基础上，提出了三种区域分割方法：第一种方法是基于曲率半径的数据分区方法，通过二次参数曲面拟合计算局部曲率半径，从正交的多个方向进行检测，保证了边点提取的完整性。

Scattered matter, brought to an ascertainable density,closped, with the weight of the world.

分散的事物达到一定可确定的密度与世界之重相交。

A hyperbola approaches but does not meet its asymptote.

双曲线逐渐接近它的渐近线但不相交。

In a single bar magnet as shown to the right, they attempt to form closed loops from pole to pole.They never cross one another.They all have the same strength.

磁场线总是寻求阻力最小的路径从一极到另外一极，但是不能相交。，所以在空间的分布是一个逐渐扩大的圈子。

In order to reduce the effect of imaging recognition error, the recognition location of projection is extended and refined, and the projection edge of sphere centre is implanted. So a pyramid is formed by radial line between the camera optical centre and the implanted point. A curved face is formed by the two pyramids and barbette sphere. To calculate the shape centre of the common section of the curved face, the shape centre is the coordinate of sphere centre.

为了降低图像识别误差的影响，对投影的识别位置进行拓展和细化，并对球心投影边界进行插值，摄像机光心与插值点连线射线形成了一个锥体，两摄像机的锥体分别与炮台球面相交形成曲面，计算两曲面公共部分的形心，即为球心位置。

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。