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前言七十年代,国外在改进烧结技术操作方面,较突出的一项措施是采用厚料层烧结,一些以烧结精矿为主的烧结厂,其料层高度
Foreword Seventies, foreign countries in the improvement of sintering technology operation, a more prominent measure is the use of thick material layer sintering, sinter concentrate-based sintering plant, the material layer height