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1987年11月21~23日在辽阳市召开了第四次螺旋压力机学术会议,到会共18个单位27名代表,收到论文26篇.会议主持人介绍了本次会议筹备经过,并回顾了前三次学术会议活动的历史情况,指出本学术小组的活动不断扩大到锻压专业以外的冶金、建材、陶瓷等领域.学组的活动继续扩大了国内的学术交流,而且对我国螺旋压力机的研究、发展、信息交流和理论密切结合生产实际,起到了良好的作用.
November 21 ~ 23, 1987 Liaoyang held the fourth spiral press academic conference, to a total of 18 units of 27 representatives, received 26 papers. The meeting introduced the preparation of the meeting and Reviewed the history of the first three academic conferences and pointed out that the activities of the academic group have been continuously expanded to fields such as metallurgy, building materials and ceramics other than the forging professional.The activities of the group continued to expand the academic exchanges in China, The research, development, exchange of information and theory are closely linked with the actual production and played a good role.