工作状态切换后可以停止通电，电机磁极与步进电机磁转子自保持可保证工作状态稳定，降低了阀自身的能耗。
The self-holding of a motor pole and the magnet rotor of the step motor can ensure the stable working situation, which reduces the energy consumption of the valve.
工作状态切换后可以停止通电，电机磁极与步进电机磁转子自保持可保证工作状态稳定，降低了阀自身的能耗。
The self-holding of a motor pole and the magnet rotor of the step motor can ensure the stable working situation, which reduces the energy consumption of the valve.
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