英语语法分析

How is the movement of the seismometer converted into a seismogram?

测震仪的运动是怎么转换成震动图的？

Seismogram synthesizing in depth domain is similar to that in time domain.

深度域的合成地震记录也与时间域类似。

This paper presents a method for automatic extraction of seismogram by computer after analysing the characters of seismogram.

本文通过对地震图特征的分析，提出了一个地震波的计算机自动提取方法。