Don't worry about the result, first ask yourself if you are qualified enough, and the effort must be worthy of the result. When the time is in place, the result will naturally come out.勤学乐施 积极进取(页眉可删)
Zaehnezahlz number of teeth 齿数(Normal) modulm n module 模数(Normal) eingriffswinkelαn normal pressure angle 压力角Schrägungswinkelβhelix angle 螺旋角Teilkreisdurchmesserd reference circle dia.分度圆直径Grundkreisd