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在普通节流阀上用步进电机连接一个螺旋副机构 ,改进成为数字节流阀 ,并用PLC主控单元直接控制节流阀步进电机 ,满足了不同工况的节流调速要求
In the ordinary throttle valve with a stepper motor connected to a helical vice agencies to improve into a digital throttle valve and PLC control unit with direct control of the throttle stepper motor to meet the requirements of different conditions throttling speed