Torus worm reducer worm reducer is a form of this method is worm reducer and processing conditions of the use of mathematical and physical basis of the formula.

• 环面蜗轮蜗杆减速器是蜗轮蜗杆减速器的一种形式.；这个方法是以加工过程和蜗轮减速器的使用条件的数学和物理公式为基础的。