The properties, producing process of welding wire for roll overlaying and breakdown treatment in its drawing production are introduced.

介绍了轧辊堆焊使用焊丝的性能、生产工艺及焊丝在拉拔过程中的故障处理。

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Gene: My point is, rock and roll by its nature leads to a breakdown in discipline.

吉恩：我的意思是，摇滚乐本身就会导致纪律混乱。

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The breakdown of transmission shaft in the main drive system is due to too high roll torque. Overpower protection mode of motor current does not reflect the true dynamic character of roll torque.

轧制力矩过大是轧机主传动系统传动轴断裂的主要原因，传统的电机电流过载保护方式不能真实反映轧机主传动系统扭矩的动力学特性。

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"We had a working session with all our referees to ensure that space is created at the breakdown and that tacklers release the tackled player and roll away immediately within the existing laws, " added Andrew.

BBC: RFU and clubs agree changes aimed at boosting spectacle