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国务院新闻办公室2011年12月27日上午10时举行新闻发布会,北斗卫星导航系统新闻发言人、中国卫星导航系统管理办公室主任冉承其宣布卫星导航系统当日起正式提供试运行服务,并介绍了北斗卫星导航系统的相关情况。同时发布了中、英文版的北斗卫星导航系统空间信号接口控制文件(ICD)(测试版)。冉承其强调了北斗卫星导航系统向全世界提供的服务都是免费的,并公布了后续的组网发射计划和服务能力。
Information Office of the State Council Information Press Conference was held on December 27, 2011 at 10 a.m., and Ran Chengqi, spokesman of Beidou Satellite Navigation System Administration and director of China’s satellite navigation system management office, officially announced the trial operation of the satellite navigation system on the day of the trial. He also introduced the Beidou Satellite Navigation system of the relevant circumstances. At the same time, the Chinese and English versions of Beidou satellite navigation system space signal interface control file (ICD) (beta) were released. Ran Cheng stressed that the Beidou satellite navigation system to provide services to the world are free, and announced the follow-up networking launch plan and service capabilities.