The limit pressure angle is related to such factors as offset angle, meanspiralangle, pitch cone angle and mean pitch cone diameter, not to geometrical shape of the tooth surface.
极限压力角受偏置角、大小轮的螺旋角、节锥角和中点的分度圆直径影响，而与齿面的其他参数无关等结论。
2
As an application result are given for Gossypium hirsutum L. Daizi-15. The result was: Between 5 and 50 days postanthesis mean microfibrillar spiralangle of S_2 secondary walls declined.