样条模型；
A physical spline is a thin piece of wood or other flexible material.
物理样条是一块薄木片或其他有弹性的物质。
Major circle is the circle formed by the outermost surface of the spline.
大圆是花键的最大齿形面的包络圆。
Usually, multivariate spline function is smooth on every point of net lines.
通常的多元样条函数要求在网线的每一点上，分片多项式的光滑性一致。
This paper minute discusses for the technology and die design to spline shafts.
此文对花键轴成形工艺，模具设计作了详细探讨。
Pitch Point is the intersection of the spline tooth profile with the pitch circle.
节点是键齿的齿廓与节圆的交点。
As compared to the spline energy method, the proposed method is more flexible in application.
与样条能量法相比，本法在使用时更加灵活。
New results are: present new expression for the basic function of many knot spline interpolation;
主要的新结果是：对多结点样条基本函数的构造给出了新的表述；
Pitch circle is the reference circle from which all transverse spline tooth dimensions are constructed.
节圆是一个参考圆，花键的键齿的所有的横向尺寸都是以节圆为基础开始计算的。
Pitch circle is the reference circle from which all transverse spline tooth dimensions are constructed.
节圆是一个参考圆，花键的键齿的所有的横向尺寸都是以节圆为基础开始计算的。
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