中国挖掘机研究会于1984年11月23日～28日在贵阳矿山机器厂召开了液压挖掘机学术交流会。参加会议的有设计、研究、制造、使用和高等院校单位的代表。会议交流和宣读了16篇论文,贵阳矿山机器厂、杭州重型机器厂、上海建筑机械厂和长江挖掘机厂的代表介 The China Excavator Research Association held an academic exchange meeting for hydraulic excavators at the Guiyang Mining Machinery Factory from November 23rd to 28th, 1984. Participants in the conference included design, research, manufacturing, use, and representatives of institutions of higher learning. The conference exchanged and read 16 papers, including representatives from Guiyang Mining Machinery Factory, Hangzhou Heavy Machinery Factory, Shanghai Construction Machinery Factory, and Changjiang Excavator Factory.