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冶金部采矿科技情报网于1977年11月23日至30日在云南易门铜矿召开了“冶金部有色金属有底柱大量崩矿矿山强化开采经验交流会”。冶金部领导机关和全国二十六个省、市、自冶区及所属重点冶金矿山,大、中院校,科研设计单位,情报机构和化工、建材等九十二个单位,一三九名代表参加了这次会议。会议期间,易门铜矿、中条山有色金属公司、铜陵有色金属公司、华铜铜矿、铜官山铜矿和桃林铅锌矿等单位交流了实行强化开采的经验;介绍了国
Ministry of Metallurgical Mining Mining Technology Information Network November 23, 1977 to 30 in Yunnan Yi Men Copper Mine held a “Metallurgical Non-ferrous metals column at the end of a large number of colliery mine intensified mining experience exchange.” The leading organs of the Ministry of Metallurgy and the country’s 26 provinces, municipalities and autonomous regions and their key metallurgical mines, universities, research institutions, intelligence agencies and chemical, building materials, 92 units, 139 Representatives attended the meeting. During the meeting, Yimen Copper Mine, Zhongtiaoshan Nonferrous Metals Company, Tongling Nonferrous Metals Company, Huacai Copper Mine, Tongguanshan Copper Mine and Taolin Lead-Zinc Mine exchanged the experience of intensive mining;