本文以新建的某小型铝冶炼企业为研究背景，设计了以S7- 300系列PLC为控制器的烟气净化控制系统。
Based on the background of a newly-built small-scale aluminium smelting enterprise, the thesis designs a purification control system of exhausted gas with S7-300 PLC.
本文以新建的某小型铝冶炼企业为研究背景，设计了以S7- 300系列PLC为控制器的烟气净化控制系统。
Based on the background of a newly-built small-scale aluminium smelting enterprise, the thesis designs a purification control system of exhausted gas with S7-300 PLC.
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