通过划分机组的约束限制条件为安全运行区和非安全运行区，提出了一种基于开关控制策略的厂内经济运行模型。
Through division of constraint conditions of units into security operation zone and non-security operation zone, a new model for internal economic operation is proposed.
耐磨性和抗冲击性能适中，通用性较好，用于精轧机组后部大部分机架或全部机架的线材轧制。
They have moderate wear resistance to impact and it is a good carbide grade for universal applications. They.
耐磨性和抗冲击性能适中，通用性较好，用于精轧机组后部大部分机架或全部机架的线材轧制。
They have moderate wear resistance to impact and it is a good carbide grade for universal applications. They.
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