speed changer

• 变速器,转速调节装置

speed changer的用法和样例：

例句

1. Step Speed Changer and Magnetic Clutch to adjust the belt speed for stable feeding and spacing between blanks.
   采用变速器和磁性离合器调整送纸皮带速度，确保送纸及输纸步距的稳定。
2. A combination countershaft and planetary gear set transmission is provided that achieves at least nine forward speed ratios and two reverse speed ratios.
   提供了组合副轴和行星齿轮组变速器，它实现了至少九个前进速比和两个后退速比。