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作者在生产实践中尝试了大排距双层送风风咀中送退风这一工艺方法,并摸索出了适宜的送风速度,因而获得了较好的熔炼效果。
In the production practice, the author tried to find out the process of sending off the wind in the double-row air-supply tuyere and found out the suitable air-blowing speed, thus obtaining the better smelting effect.