Very few seismograms showing motion near to the source are available.
可以利用的记录震源附近运动的地震图很少。
Examples of synthetic seismograms corresponding to three crust models are given in the paper.
文中附有三种模型的体波综合地震图计算实例。
The principal deficit in making synthetic seismograms is that the input data commonly are incomplete.
制作合成地震记录主要的不足之处是输入资料不全。
This method can be easily applied to the computation of theoretical seismograms of volcanic earthquake.
这种方法特别适用于火山地震的理论地震图计算。
The fault zone trapped waves were separated from seismograms by numerical filtering and spectral analyzing.
经过数字滤波和频谱分析等技术， 由地震记录图中分离出了断层围陷波。
Theoretical reflection seismograms in dynamite source condition are formed by using anisotropic reflectivity method.
本文用各向异性反射率法计算爆破源反射地震的理论地震图。
Through the tunnel of snapshots and synthetic seismograms are two ways of the tunnel with characteristic wave field analysis.
本文通过隧道波场快照和合成地震记录两种方式对隧道的波场特证进行分析。
We want to find the location, depth and origin time of an earthquake whose waves arrive at The Times measured on each seismograms.
我们想通过地震仪记录地震波经过的时间，确定震源的地点、深度和发生时间。
Let's guess an origin time of 10 seconds, measured on the same clock that made the time scale at the bottom of the figure and timed the seismograms.
让我们猜测地震的起源时间为10秒，在同一个钟上测量，使得时间刻度在图表的底部，让地震图同步时控。
Seismograms are recordings of ground motion as a function of time and are the basic data which seismologists use to study the waves generated by earthquakes.
振动图是用来记录地面随时间运动并且是地震学家用来研究地震波的基础数据。
The results of synthetic seismograms and real data indicate that the method can separate coherent and random noise effectively, enhance signal-to-noise ratio…
理论模型计算和实际资料处理试验表明，使用该方法能有效地分离相干噪声和随机噪声，提高地震记录的信噪比，简单实用，便于操作。
The making principle of horizontal well synthetic seismograms is the same as that of vertical well synthetic seismograms, but the making methods are different.
水平井人工合成记录的制作原理与垂直井相同，但具体的制作方法有所区别。
The method of reflectivity in the calculation of synthetic seismograms is extended for the case of a point shear dislocation source buried in a layered medium.
本文将计算综合地震图所用的反射法，推广于层状介质中的剪切位错内源情况。
It is also shown that after the derivation of seismograms, high-frequency contents are ameliorated in some degree while low-frequency contents are damaged surely.
同时还表明，对地震记录求导以后，虽然对高频成分有所提升，但与此同时又压制了低频成分。
Seismograms (graphic representations of the measuring results) or model calculations derived from them allow the formulation of statements about the underground structures.
震动图(测量结果的图示)或模型计算的出现，使得将地下结构可视化成为了可能。
It is possible to yield incorrect results including false long period components, during the restitution of the ground displacement from digital seismograms directly using FFT.
直接使用FFT由数字地震记录来恢复地面位移可能产生包括虚假的长周期分量在内的不正确结果。
Seismograms convey detailed information about the characteristics of the interior of the Earth and seafloors, and an analysis of the data helps in detecting oil and other resources.
震动图中包含有大陆和洋底内部特性的详细信息，对这些数据进行分析可以帮助我们探测石油和其他资源。
Seismograms are the records (paper copy) produced by seismographs used to calculate the location and magnitude of an earthquake. They show how the ground moves with the passage of time.
震动图是地震仪的测量结果的纸质记录，是用来确定地震发生的地区和震级。它们记录了在过去一段时间里地壳的运动情况。
Michel Bouchon at the University of Grenoble, France, and a team of French and Turkish geologists studied seismograms recorded before the Izmit earthquake, which killed some 17, 000 people.
法国格勒诺布尔大学的米歇尔•布乔(Michel Bouchon)及来自法国、土耳其的地质学者一起对1999年夺走1万7千条生命的土耳其伊兹米特(Izmit)大地震发生前的记录的震动图进行了研究。
Then the azimuth of formation fractures is estimated; and with the joint use of zero offset P wave source VSP data, fast and slow shear wave seismograms are obtained to have fracture density.
在获得地下裂隙方位角的同时，结合零偏纵波VSP资料得到快、慢S波记录，进而计算了裂隙密度。
This paper presented a new method of generating synthetic, seismograms of wave theory in frequency domain and gave the diffraction equation in frequency domain, which is equivalent to Kirchhoff one.
本文提出一种新的方法，在频率域中制作波动理论的合成记录，给出了与克希霍夫绕射波方程等价的频率域中的绕射波方程。
By comparing the synthetic seismograms with the observed data we investigated the characteristics of the faulting process, especially the rupture velocity, rupture length and dislocation distribution.
本文对这次地震的强震记录进行了数值模拟，并通过合成地震图与观测资料的对比，研究了这次地震的断层长度、破裂方式以及位错分布的特点。
By comparing the synthetic seismograms with the observed data we investigated the characteristics of the faulting process, especially the rupture velocity, rupture length and dislocation distribution.
本文对这次地震的强震记录进行了数值模拟，并通过合成地震图与观测资料的对比，研究了这次地震的断层长度、破裂方式以及位错分布的特点。
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