【机】 太阳行星轮系, 周轮齿轮装置

sun gear planet engaging and disengaging gear sun worm and wheel steering gear form and gear grinding machine epicycloidal and hypocycloidal gear tooth eccentric and cam valve gear planet stirrer planet-stricken planet cage secondary planet sun-and-planet gear sun-and-planet strander sun-and-planet motion sun-and-planet gearing planet gear differential planet gear planet differential gear inner planet gear coil planet gear centrifuge planet gear speed reducer