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在1982年,露天采矿部门继续受到第二次世界大战以来最糟糕的经济衰退的挑战,必须寻求新的采矿技术和重新考核现有的开采方法,以便保持露天开采的经济效益。到1983年初,只有贵金属部门还有理由保持乐观的态度。 1983年1月《工程和采矿杂志》概述了投资费用的前景,透露了计划的投资费用可保持到与前一年所报道的水平相同。工程项目的总数也保持大致相同。有关上述投资费用的主要产品包括铁矿、铝、铜、铅和锌、金和铀。根
In 1982, the open pit mining sector continued to be challenged by the worst recession since the Second World War and must seek new mining technologies and re-evaluate existing mining methods in order to maintain the economic benefits of open pit mining. By early 1983, there was only reason for the precious metals sector to remain optimistic. January 1983 The Journal of Engineering and Mining outlines the prospect of investment costs, revealing that planned investment costs can be kept the same as reported for the previous year. The total number of projects also remains roughly the same. The main products related to the above investment costs include iron ore, aluminum, copper, lead and zinc, gold and uranium. root