根据第一机械工业部的指示和一九七三年十二月液压行业长沙座谈会精神,于一九七四年七月十六日至八月廿一日在广州召开了中低压液压元件专业会议,参加会议的有二十个省、市、自治区的四十四个工厂、研究所和有关高等院校的代表,一机部机床工具局与机械院也派代表参加了会议。这次会议是在批林批孔运动正朝着深入、持久、普及的方向开展的大好形势下召开 According to the instruction of the First Ministry of Machinery Industry and the spirit of the Changsha Hydraulic Symposium in December 1973, a professional training program was held in Guangzhou from July 16 to August 21, Meetings, attended the meeting of the forty-four factories, research institutes and institutions of higher learning in twenty provinces, municipalities and autonomous regions attended the meeting, a machine department of the Bureau of Machine Tools and Machinery also sent representatives to attend the meeting. This meeting was held under the excellent situation that the campaign of proletarian criticism and hole movement is proceeding in an in-depth, long-lasting and universal direction