1986年,是露天开采的另一个困难的年分,矿山经营者和行政机关进行奋斗以保持他们在经营上的经济生存能力。这一年自始至终持续保持金属和矿产品低价格,但最近几年由于努力控制生产费用,已开始带来矿山生产的改善、较好的设备利用和资方与工会间的密切合作。不断前进的经营将通过为内部扩建而公布 In 1986, another difficult year for open pit mining, mine operators and administrations struggled to maintain their economic viability. This year, the low prices for metals and minerals have continued to be maintained throughout the year, but efforts to contain production costs in recent years have begun to bring about improvements in mine production, better equipment utilization and close cooperation between employers and employees. Going forward will be announced through internal expansion