Degree elevation of spline curves is an important technique in surface design and computer aided geometric modeling. It is a fundamental tool in CAGD systems and frequently used in geometric design of composite curves, sweeping and skinning surfaces.

• 曲线升阶是曲面设计和计算机辅助几何造型中的一项重要技术，它是CAGD系统中的一个基本工具，经常被用于组合曲线、蒙皮曲面或扫描曲面的几何设计中。