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一第四届全国矿产资源综合利用学术会议于1993年6月28日至7月1日在北京召开。参加这次会议的有来自全国地矿、冶金、有色金属、核工业、煤炭等系统的60个单位的91名代表。大会由我国著名的选矿专家、中国选矿科技情报网理事长张卯均主持,地矿部矿产开发管理局芮文桐副局长致开幕词,并作了题为《依靠科技进步,把矿
The Fourth National Conference on Comprehensive Utilization of Mineral Resources was held in Beijing from June 28 to July 1, 1993. Attending the conference, there were 91 delegates from 60 units of the national system of mining, metallurgy, non-ferrous metals, nuclear industry and coal. The conference was presided over by Zhang Mao, chairman of China Mineral Processing Technology Information Network, a well-known mineral processing expert in our country. Deputy Director Rui Wentong of Mineral Resources Development and Management Bureau of Mines and Minerals delivered an opening speech and made a speech entitled "Relying on Scientific and Technological Progress,