1988年,露天开采继续呈现出与1987年相类似的趋势。有色金属价格的显著提高,在今年内达到了新的高峰,大量停止的生产得到复活.对降低生产成本的潜力在进行积极的探测,而重新协商的工资合同、有关工业上的联系问题以及实际制约诸因素(如滑坡持续)均受到严格检验。对有色金属和铁的价格,不仅因为工业上的需要而提高,而且也是对一些价值较低的矿堆的一项深思熟虑的方针。1987年,资本主义世界的黄金产量达到了 In 1988, open pit mining continued to show similar trends as in 1987. The significant increase in the price of non-ferrous metals reached a new peak during the year and the resumption of massively halted production was actively probed into the potential for reducing the cost of production, and the renegotiated wage contracts, industrial relations issues, and actual Constraints (such as landslides continued) are subject to rigorous testing. The price of non-ferrous metals and iron is not only raised by industrial needs, but also a well-thought-out guide to some of the less valuable mines. In 1987, the gold output of the capitalist world reached