velocity modulating generator

例句：

1. 1. The velocity modulating generator is used to adjust the speed of a motor.
   调速发电机用于调整电机的速度。
2. 2. The new velocity modulating generator has improved efficiency and reduced noise.
   新型的调速发电机提高了效率并降低了噪音。
3. 3. The velocity modulating generator was developed to overcome the limitations of traditional generators.
   研制出调速发电机是为了克服传统发电机的局限性。