矩形花键插齿刀
gear shaper for rectangled spline
矩形花键滚刀
parrallel side spline hob
Hobs for parallel side splines
矩形花键精滚刀
rectangle spline refined hob
矩形花键拉刀
rectangular spline broach
parallel side spline broach
矩形花键量规
Gauges for straight-sided splines
矩形花键推刀
parallel side spline push broach
L-R梯形模糊数
L-R trapeziform fuzzy numbers