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提出的利用软件改变调节阀流量特性的新方法，无需更换反馈凸轮和更换阀门，便可解决因调节阀流量特性选择不当而对控制系统造成的影响。
The new method of using software to change the flow characteristics of the control valve is proposed to solve the problem of the control system caused by improper selection of the flow characteristics of the control valve without changing the feedback cam and replacing the valve.