The realization scheme of digital dispatch system in the first stage of Wuhan rail transit line 1 is introduced, and its function is described in detail.
主要介绍数字调度系统在武汉轨道交通1号线一期线路中的实现方案，并就其功能实现做了较详细的说明。
Continous observations of the propagation delay variation of BPM standard time signal were carried out in real time at Wuhan Ionospheric Observatory by a digital display system.
利用新研制的短波传播时延实时数字显示系统，在武汉电离层观象台对BPM时号的传播时延进行了长时间连续观测。
Digital library user cooperative platform is the subsystem of knowledge service digital library of Wuhan University of Technology.
数字图书馆用户协作平台是武汉理工大学知识服务型数字图书馆系统的一个子系统。
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