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1997年12月18日,广电部科技司、部标准化规划研究所和影视学会标准与测量分会在京联合召开了《PAL-D 电视广播附加双声道数字声技术规范》发布宣贯大会。广电部科技司副司长张兆雄代表部科技司宣读了发布标准的正式文件并宣布该标准从1998年5月1日起实施。北京电视台石谋斌总工和电子部系统
December 18, 1997, Radio and Television Department of Science and Technology, Department of Standardization Planning Institute and the Institute of Film and Television Standards and Measurement branch jointly held in Beijing, “PAL-D TV broadcasting additional two-channel digital sound technical specifications,” announced the announcement of the General Assembly. Zhang Zhaoxiong, deputy director of the Department of Science and Technology of the Radio and Television Department, read out an official document promulgating the standard on behalf of the Department of Science and Technology and announced that the standard will come into force on May 1, 1998. Beijing TV Shi Moubin Chief Engineer and the Department of Electronics Systems