Intentional slice

A pilling curve is dr.

因而据此可做出山羊绒针织物的起球曲线,对起球曲线进行分析从而可得出山羊绒针织物摩擦起球的合适时间,对进行抗起球整理时的优化参数有指导意义。

This paper present the geometrical properties of some typical trajectories for finitely separated positions,such as cylindrical curve,spherical curve,constant inclination ruled surface and constant distance ruled surface.

给出了有限分离位置圆柱面曲线、球面曲线、定斜直纹面及定距直纹面等几类空间轨迹的几何特征。

A fundamental property of spherical curves in G, s is obtained.

给出了R~3中球面曲线的一个基本性质,并用以得到某些经典的或新的整体结果。