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使用椭圆形风口可使高炉子缸有效带稍扩大,并在加重边缘负荷的情况下能使高炉作业指标得到一些改善。
The use of an oval-shaped tuyere allows the effective width of the blast furnace cylinder to be slightly enlarged and, in the case of increased edge loads, the blast furnace operating index can be somewhat improved.