论文部分内容阅读
本文根据1988年发表的部分采矿方面的论文与报道,有关会议文献及本人收集的资料,分露天开采及井下开采进行评述。
Based on the papers and reports on some mining issues published in 1988, the relevant conference documents and the data collected by myself, this article reviews opencast mining and underground mining.