根据这一原理，制造出了最初的地震仪器。
It was upon this principle that the first instruments were made.
地震仪器采集系统的雷电防护也显得日益重要。
The protection of acquisition system of seismograph from lightning appears more important.
地震计是一种地震仪器，其物理常数是已知的。
A seismometer is a seismograph whose physical constants are so well known.
SN388遥测仪是世界上较完善的地震仪器之一。
SN388 telemetry instrument is one of complete seismograph in the world.
SN388遥测仪是世界上较完善的地震仪器之一。
SN388 telemetry instrument is one of complete seismograph in the world.
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