• 利用新研制短波传播时延实时数字显示系统武汉电离层观象台BPM号的传播时延进行了长时间连续观测

    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.

    youdao

  • 利用新研制短波传播时延实时数字显示系统武汉电离层观象台BPM号的传播时延进行了长时间连续观测

    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.

    youdao

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