交流伺服系统在许多性能方面都优于步进电机。
Ac servo system in many performance is better than the stepping motor.
交流伺服系统在许多性能方面都优于步进电机。
Ac servo system in many performance are better than the stepping motor.
实验表明：双闭环的永磁数字交流伺服系统拥有很高的速度和位置控制性能。
Experiments show that the two-loop Servo System has good performances in speed and position control.
实验表明：双闭环的永磁数字交流伺服系统拥有很高的速度和位置控制性能。
Experiments show that the two-loop Servo System has good performances in speed and position control.
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