国 上酒短大峰 Planetary or Epicyclic Gears 0 ring Ring gear Output 80t Ring gear 4 Sun gear Arm 2 Am ® 02 Input Input 2 图上涤夫廷大学 Complex Gear Trains 57 3 Fixd Epicyclic 88 Planetary or Epicyclic Gears Complex Gear Trains Fixd Epicyclic ?