...云南锡业集团(Yunnan Tin Group)一位高管周二表示﹐公司将从9月末开始为期约20-30天的检修。 这位拒绝透露姓名的高管称﹐这是公司每年例行进行的检修。
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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。
For increasing the utilization efficiency of mineral resources, Yunnan Tin Company Group Limited adopts the filling mining methods for different ore bodies.
云南锡业集团公司为提高矿产资源的利用率，针对不同开采技术条件的矿体，选用与之相适应的充填采矿法开采。
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