seismographs

Any earthquake at any distance from a calibrated seismograph is nowadays assigned a magnitude.

现在对于距一标定过的地震仪任何距离处的任何一个地震，都可用一个震级确定之。

A method for calculating the transfer function of digital seismograph system

数字地震仪系统传递函数的一种计算方法

Amplitude frequency characteristics and application of transfer function by digital seismograph

数字地震仪传递函数幅频特性及其应用的分析

Principles and methods of modern communication technology are more and more applied to the design and manufacture of new style telemetry seismographs.

现代通信技术的原理和方法正越来越多地被应用到新型遥测地震仪的设计与制造中。

Portable seismographs like this one are used for more detailed research.

像这样的便携式地震仪是用来做更详细研究的。

Today, quartz crystal clocks are generally used on the seismograph stations.

目前，地震台站一般采用石英晶体钟。