involute function

例句：

1. 1. The involute function is used to describe the shape of a curved surface.
   内接函数用于描述曲线表面的形态。
2. 2.Involute functions are important in the design of gears and other mechanical components.
   内接函数在齿轮和其他机械部件的设计中非常重要。
3. 3. The involute function can be used to calculate the radial clearance between two surfaces.
   内接函数可以用来计算两个表面之间的径向间隙。