permanent magnet D.C. torque motor

例句：

1. 1. The permanent magnet DC motor is a type of electric motor that uses permanent magnets to generate electricity.
   永久磁铁直流电机是一种使用永磁体产生电力的电动机类型。
2. 2. The permanent magnet DC motor is widely used in industrial applications due to its high efficiency and low maintenance costs.
   由于其高效率和低维护成本，永久磁铁直流电机在工业应用中得到了广泛应用。
3. 3. The permanent magnet DC motor is an important component in many modern electronic devices, such as computers and televisions.
   永久磁铁直流电机是许多现代电子设备的重要组件，如计算机和电视机。