应用实践表明，两种阀特别是单柱阀，对矿浆或液体流量、 浓度的调控比闸阀、 球阀或管夹阀更适用，在选厂磨矿分级作业自动控制中的大量使用已产生了很大效益。

The application practice has shown that both valves, especially the single cylinder one, are more suitable than sluice valve, ball valve or pipe clamp valve in regulating and controlling the…

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