DC motors

• 直流电机

DC motors的用法和样例：

例句

1. It is obvious that A. C. motors are superior to D. C. motors in many applications.
   显然，交流电机在许多应用场合比直流电机优越。
2. The working principles of brushless DC motor and the method of application were given.
   摘要介绍了无刷直流电机的工作原理及其在自制近红外光谱仪中的应用。