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continuous slab casting operations (Submerged entry nozzles play a vital role in ensuring continuous slab casting operations, preventing oxygen and nitrogen pick-up of steel stream and achieving a desired flow in the mold. 浸人式水口在保证板坯连铸操作、防止钢水注流吸氧吸氮和获得结晶器内理想钢水流动方面起着至关重要的作用。) |