The control process of bar rolling speed was presented and the effects of low tension, loop and cascade control in speed regulation were described.
介绍了棒材轧线的系统结构及轧机速度控制过程，详细说明微张力、活套以及级联控制等在速度调节中的作用。
According to the view of random arrival time of incident wave, theoretical analysis is carried out on the dynamic fracture regulation of rock bar.
从应力波随机到达的角度对均质岩石杆件动态断裂规律进行理论分析。
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