一种结构简单的辊式矫直器能很好地解决这个问题。
A type of roller structure straightener can resolve the problem well.
分析了影响导辊使用寿命的因素，采取了相应的技术措施，有效地降低了导辊的消耗量。
The factors for influencing service life of guide roller were analyzed, the relevant technical measures were adopted to reduce the guided roller consumption.
较详细地讨论了辊底式炉煤气安全防爆系统的设计与操作。
The paper discusses the design and operation of the gas safety and explosion protection system of roller hearth furnace in detail.
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