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| lean iron ore (【技】铁品位较低的铁矿石，一般含铁为30% -40%或更低。贫铁矿人炉前要进行选矿处理，提高含铁量，降低脉石含量及有害元素含量，制成人造富矿后供冶炼用。) | |||
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