单词polar angle
un.: 极角；极距角
网络: 极坐标角；其中高度角；视角
极距角
极角
Errors analysis of the polar radius and polar angle of non- circular gear cut by NC cutting machine
数控插齿加工的非圆齿轮极径与极角误差分析
A interpolation algorithm for three order ellipse with equal polar angle
三阶椭圆等极角插补算法