There is little mobility among the various types of central control and process operators within the mineral and metal processing industry.

矿物和金属加工行业内的各种类型的中央控制和过程操作员的流动性不大。

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PID controller is widely used in the industry control process, but the parameters tuning is still a problem that people concerned.

PID控制器在当前的工业过程控制中仍有着广泛的应用，但其控制参数整定一直是难点问题之一。

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Aiming at the complicated process control especially in the great disturbing producing course, STD bus industry control machine which has strong application can improve the control effect.

结论STD总线工业控制机对复杂的生产过程，特别是扰动大的生产过程，具有很强的适用性，可大大提高控制效果。

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Industry experts argue that during this time-consuming process, competitors from countries with less stringent export control enforcement can make inroads into the market.

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