An accident of overvoltage reflected wave occurred in Chongqing Iron and Steel Company is presented. Generating reasons of overvoltage reflected wave and protective measures are discussed.

介绍了在重钢发生的过电压反射波的危害实例，探讨了过电压反射波的产生原因及预防措施。

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The article deals with the current analysis and risk evaluation of CISC (Chongqing Iron and Steel Company)'s information internet security under the opening systematic co-action secure structure.

本文论述了开放系统互联 安全体系 结构下的重钢信息网络 安全现状分析和风险评估；

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Unifies the Chongqing steel and iron limited liability company cold rolling sheet-metal mill the actual demand, designed a set to suit the metallurgy profession the MES system.

结合重庆钢铁股份有限公司冷轧薄板厂的实际需求，设计了一套适合冶金行业的MES系统。

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