在一定的铁液深度和铁液硫含量时，金属镁粒铁水脱硫时镁的利用率随镁粒的粒径增加而减小；
More bigger of the radius of solid magnesiums are, more longer of the residence time and the rate of the magnesium bubble become, and little of the mass transfer coefficient are in the hot metal.
在一定的铁液深度和铁液硫含量时，金属镁粒铁水脱硫时镁的利用率随镁粒的粒径增加而减小；
More bigger of the radius of solid magnesiums are, more longer of the residence time and the rate of the magnesium bubble become, and little of the mass transfer coefficient are in the hot metal.
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