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广播电影电视部技术局于1990年1月5日在北京组织了以部总工程师何大中同志为首的、由部内外十二位专家、教授的技术鉴定
Radio, Film and Television Technology Bureau in January 5, 1990 in Beijing organized by the chief engineer Comrade He Dazhong led by twelve experts inside and outside the Department, Professor of technical appraisal