High accuracy, using SCM control, software timing, shut down automatically 30 seconds after launch show.
准确度高，采用单片机控制，软件定时，启动后30秒自动关闭显示。
As a space infrastructure of national significance, the BDS provides all-time, all-weather and high-accuracy positioning, navigation and timing services to global users.
为全球用户提供全天候、全天时、高精度的定位、导航和授时服务的国家重要空间基础设施。
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