Theoretical study shows that the ratioofrevolution velocity to rotation velocity will affect the magnitude and direction of resistance moment of all the cutters.
理论分析表明：行星轮公转与自转的速比，影响着每个切削刀具的阻力矩的大小与方向；
2
Exercised by 'present wheel revolutions = the diameter of the wheel (certain) so the exercise of the journey and wheel revolution into a direct ratio.