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主要介绍了PLC控制技术和DCS控制技术在NH3生产工艺中的技术特点和应用,以NH3生产工艺实例比较了PLC控制与DCS控制的优劣势和前景分析。
Mainly introduced the PLC control technology and the DCS control technology in the NH3 production technology technical characteristic and the application, compared NH3 production craft example to compare PLC control and the DCS control superiority and inferiority and the foreground analysis.