写好一篇“年评”对广大读者了解一年来采矿科技的发展概况,预测近期的发展方向,加强信息交流,促进新技术与新研究成果的推广,对安排好我们的生产和科研计划,都是十分有益的。下面这篇文章,是本刊编辑部特邀东北工学院采矿系各专业教研室富有经验的教授、副教授、技术专家,共同讨论,分别执笔撰写的。为此,他们付出了辛勤的劳动,特表示谢意。 Write an annual review of the majority of readers understand the development of mining technology over the past year, predict the recent direction of development, strengthen information exchange, promote the promotion of new technologies and new research results, to arrange our production and research plans, Are very useful. The following article is edited by the editorial department invited Northeast Institute of Technology Department of Mining professional professors and professors, associate professors, technical experts, to discuss and write separately. To this end, they have paid a lot of hard work, especially grateful.