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1·A large amount of rare earths exists in tails from concentrating mill of Baotou Iron and Steel Co. and can be reused.

包钢选矿厂的尾矿中含有大量稀土，可再次利用。

2·This paper introduces the renovation measures of green lighting and the situation before it was popularized in a concentrating mill of Yunnan tin group.

介绍了云锡集团某选矿厂推广绿色照明前的况状和绿色照明改造措施。

3·In accordance with some wolfram tin effuse come from cleaner in a concentrating mill, this study adopt vibrated slimes shaking table combining with centrifugal separator to put up a roughers.

针对某选厂废弃的钨锡精选溢流进行了选矿试验研究 ，采用振动矿泥摇床与离心机组合粗选，运用重选-浮选 -磁选（水冶）联合工艺流程 ，有效地解决了钨锡细泥综合回收问题。

4·The principle of the mill is concentrating the milling energy into a confined annular gap, in order to increase energy density and acquire high milling efficiency.

其基本原理是将研磨能量集中到一个狭小的缝隙内，大幅度提高研磨能量密度，以获得良好的研磨效率。

5·Concentrating on the size, components and type of heavy and medium plate mill, the paper reveals some ideas about type selection of heavy and medium plate mill.

本文就中厚板轧机大小，组成及型式等三个问题，对中厚板轧机的选型和系列提出了一些看法。