• The fifth paper gives a summary about the history of the global long period seismograph network, and its instruments as well as its scientific significance.

    综述了全球周期地震台网创造过程、仪器设备及其科学价值

    youdao

  • The fifth paper gives a summary about the history of the global long period seismograph network, and its instruments as well as its scientific significance.

    综述了全球周期地震台网创造过程、仪器设备及其科学价值

    youdao

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