The paper mainly introduces and discusses the existing state of main inclusions element in Baiyun ore, and the inclusions decrease result of the existing ore dressing process at Baotou Steel.
本文着重介绍了包钢白云鄂博矿主要杂质元素的赋存状态，包钢现行选矿工艺的降杂效果，并作了简要讨论。
This paper presents the state of the art concerning the study of trace element abundances in igneous rocks, the existing problems and methodology.
本文讨论了微量元素丰度研究在国内外的现状、存在问题及解决途径。
The existing state of trace element in coal and variation of operation conditions have great effects on the enrichment of trace element in fly ash and bottom slag.
微量元素在煤中的赋存形态和锅炉运行工况的变化影响微量元素在底渣和电除尘器飞灰中的富集。
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