目前16S251是成為當(dāng)今世界最強(qiáng)有力同步嚙合的變速器.The 16 S 251 is now the most powerful synchromesh transmission in the world.齒合系數(shù) --- 嚙合的平均齒數(shù).Contact ratio: the average number of teeth in contact.互相嚙合的直齒圓柱齒輪,必須具有相同的徑節(jié).Meshing spur gears must...