Non-Uniform refers to the parameterization of the curve. Non-Uniform curves allow, among other things, the presence of multi-knots, which are needed to represent Bezier curves.

• 非均匀指曲线的参数化法。非均匀曲线允许（其它东西之一(我也没看懂)）多重结点的存在，这是模拟贝赛曲线所必需的。