实际中该系统采用直流力矩电机直接驱动的控制方法，达到了很高的速度控制精度和较宽的调速范围。
Practically, the control method applying direct_drive option for DC torque motor can achieve wide_range and high_precision velocity control.
滴灌带的卷取采用力矩电机控制，配备调速系统，有效克服张力缺陷。
Coiling using drip irrigation with the torque motor control, equipped with speed control system, effectively overcome the tension defects.
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