由PW M脉宽调制器驱动功率驱动电路，输出电流信号驱动比例电磁铁。
This output transferred thorough PWM driver circuit and changed into current signal to the proportional magnetic valve.
由PW M脉宽调制器驱动功率驱动电路，输出电流信号驱动比例电磁铁。
This output transferred thorough PWM driver circuit and changed into current signal to the proportional magnetic valve.
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