以下为句子列表：
英文: Abstract: The original mineral of Dading Iron Mine was processed by the technique which included pre-classification, dry magnetic separation to discard dirt, magnetic separation of the coarsely ground ore, scondary grinding and secondary magntic separatio
中文: 文摘:采用预先分级、干式磁选抛废、粗磨磁选、粗精矿再磨再磁选的工艺流程处理大顶铁矿原生矿，提高了原矿处理量，降低了磨矿成本，获得铁精矿品位65.54％、铁回收率94.11％的技术指标.
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