• In this paper, a three-component digital seismic recorder designed for seismic observatories is described. A semiconductor memory is used as a delay unit.

    本文介绍了一种用于地震观测的三分向数字式地震事件记录器

    youdao

  • In this paper, a three-component digital seismic recorder designed for seismic observatories is described. A semiconductor memory is used as a delay unit.

    本文介绍了一种用于地震观测的三分向数字式地震事件记录器

    youdao

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