| 摘要 |
<p>The gear transmission system has a seven forward gears and a reverse gear. The unit has an input shaft [1], output shaft [2], three planetary gears [P1,P2,P3], six shafts [1-6]and six switching elements [03,04,15,23,25,34,45,46] for gear ratio selection between input and output shafts.</p> |
