1987年5月14—17日,中国选矿情报网选矿测试技术及自动控制情报网在锦州市召开了第二届年会及国产选矿检测及控制仪器仪表推广交流会。出席的会议代表共90名,来自全国18个省市,9个部委56个单位。大会交流了 May 1987 May 14-17, China Mineral Processing Information Network dressing test technology and automatic control information network held its second annual meeting in Jinzhou and domestic dressing and testing and control instrumentation to promote exchange. A total of 90 delegates attended the conference, from 18 provinces and cities nationwide and 56 ministries and commissions from 9 ministries and commissions. Conference exchange