bubbling fluidized bed(This ironmaking process uses a circulating fluidized bed preheater and a 2-stage reactor for the reduction of iron ore fines： the first stage is a circulating fluidized bed, and the second stage a bubbling fluidized bed. 这一炼铁法使用一个循环流态化床预热器和一个二级铁矿粉还原反应器。该反应器一级是一个循环流态化床，二级是一个起泡流态化床。)
steel stream shrouding against reoxidation(The following equipment and technologies ensure the quality of continuously cast slabs: ladle metallurgy, steel stream shrouding against reoxidation, suitably shaped tundishes, tundish metallurgy, perfect alignment of the strand guiding segments, etc. 下述设备和技术确保了连铸板坯的质量，它们包括：钢包冶金、钢水注流防止二次氧化保护、合适形状的中间包、中间包冶金以及铸坯导向扇形段的精确对中等。)
