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航空工业部京津地区科技档案工作协作组,于1987年3月18日在航空部621所召开全体成员单位会议。与会30多名代表,16个成员单
The Ministry of Aeronautical Industry and Ministry of Science and Technology Archives Working Group of the Beijing-Tianjin Region held a meeting of all member companies in the Ministry of Aviation 621 on March 18, 1987. More than 30 representatives from the conference, 16 members alone