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1985年5月13日至17日在西班牙马德里召开了第三届国际钨讨论会。出席会议的230名代表来自26个国家的141个不同组织机构,既有生产厂矿,也
The Third International Tungsten Symposium was held in Madrid, Spain from May 13 to May 17, 1985. The 230 delegates attending the meeting came from 141 different organizations and organizations in 26 countries, both producing factories and mines and also