Chinese translation for "prerefining"

初步提纯 预先精炼
预精炼
预精制

Similar Words：

"prereductional" Chinese translation, "prereductional disjunction" Chinese translation, "prereductional division" Chinese translation, "prereductional separation" Chinese translation, "prereductionofironore" Chinese translation, "preregeneration" Chinese translation, "preregeneration system" Chinese translation, "preregistered" Chinese translation, "preregisteroperation" Chinese translation, "preregistration" Chinese translation