基本解释[冶金工程技术]铁矿石预还原英汉例句双语例句The pre-reduction process of concentrated iron ore on a fluidized bed is studied in this paper.对铁精矿流态化预还原过程进行了试验。iron ore pre-reduction更多例句专业释义冶金工程技术铁矿石预还原