2) Formulas calculating meshing area of meshing pair are deduced as per relationship between oscillating-teeth number and wave number of wave generator.

• 按照活齿齿数与波发生器波数的关系，将活齿端面谐波齿轮分为活齿数能被波数整除和活齿数不能被波数整除两大类，并按照这种分类方法，分别推导出了工作啮合副啮合总面积的计算公式。