特殊用法affine involute1.仿射渐伸线filar involute1.线渐伸线minus involute1.(齿轮的)负的渐开线plane involute1.平面渐开线, 平面渐伸线plus involute1.正渐开线spherical involute1.球面渐开线involute of circle1.圆的渐开线involute of circuit1.电路的渐伸线, 回路的切展线