braking action(The braking action and consequent reduction in the high steel flow velocities also reduces the turbulence level at the meniscus, resulting in less mold powder entrapment. 制动作用和随后钢水高流速的降低也减轻了金属弯月面处的紊流程度，从而减轻了结晶器保护渣卷人。)
combined-blowing practice(With the bottom injection of argon in the BOF combined-blowing practice, and the presence of hydrogen in the gas bubbles in OBM, the partial pressure of CO in the gas bubbles will be lowered in both processes when the rate of CO generation decreases. 带有底吹氩的 BOF 复吹实践和 OBM 炼钢时气泡中存在氢时，如果 CO 的产生速度下降，则这两种炼钢法气泡中的 CO 分压将会降低。)
