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1990年4月11日至15日,由中国有色金属学会选矿学术委员会、中国选矿科技情报网和中国有色金属工业总公司选矿情报网联合主办的第二届选矿学术讨论会在北京召开。出席会议的代表有180多人。中国有色金属学会选矿学术委员会副主任委员、北京矿冶研究总院院长孙传尧主持了开幕式,中国有色金属学会选矿学术委员会名誉主任委员、中国选矿科技情报网理事长张卯均致了开幕词,中国有色金属学会副秘书长余兴远作了“促进
From April 11 to April 15, 1990, the 2nd Mineral Processing Symposium jointly hosted by China Nonferrous Metals Society, Mineral Processing Academic Committee, China Mineral Processing Technology Information Network and China Nonferrous Metals Industry Corporation Mineral Processing Information Network was held in Beijing. More than 180 representatives attended the meeting. Sun Chuan-yao, president of Beijing Research Institute of Mineral Processing and Metallurgy, presided over the opening ceremony. Zhang Mao, honorary chairman of China Nonferrous Metals Association, and chairman of China Mineral Processing Technology Information Network delivered the opening speech. China Yu Xingyuan, deputy secretary general of the Nonferrous Metals Society, made a "promotion