cascade speed-regulating

• 串级调速

cascade speed-regulating的用法和样例：

例句

1. The spindles motor uses electromagnetic stepless speed regulation ,and adapts to cutting for different materials.
   主轴电机电磁无级调速，适应不同材质的裁切。
2. Stepless frequency modulated speed,low noise,low vibration driving and smooth running.
   速度无级调速，低噪音，低振动传动，运行平稳。