Length fractal dimension method for picking seismic first break.;
Length分形维算法拾取地震波初至
Ray Tracing Forward Modeling with Seismic First Arrival Times;
地震波初至旅行时射线追踪正演方法研究
Seismic First Break Travel-time Tomography and Its Application in Near-surface Velocity Model Building
地震初至波走时层析成像与近地表速度建模
The analysis of seismograms indicates that the first arrival is a P-wave, followed by a S-wave.
地震波记录曲线的分析表明，初至波是P波，随后是S波。
Refraction First-Break Automatic Residual Static Corrections by Using Difference Method for the Seismic Wave Signals;
地震信号差分法初至折射波自动剩余静校正
THE APPLICATION OF STATISTIC ENERGY RATIO OF TRANSFORM TIME WINDOWS TO THE PICKUP OF SEISMIC FIRST ARRIVAL WAVE
用变换时窗统计能量比法拾取地震初至波
The Auto Picking of First Break Time and the Research of Near-surface Modeling Methods;
地震初至波自动拾取和折射波表层调查方法研究
Study On Fractal-based For Picking First Arrivals On Seismic Traces;
基于分形维地震道初至拾取方法研究
seismic research, tremors, waves
地震的研究、 震动、 震波.
Determining Focal Mechanism Solution of the 2000 Yao'an M_S6.5 Earthquake Sequence Using the First Motion and Amplitude Ratio of P and S wave
利用P波、S波初动和振幅比计算2000年姚安M_S6.5地震序列震源机制解
ANN Methods for Seismic First Break Picking and Its Parallelization Study;
神经网络地震初至拾取算法及并行化研究
Comparative study of window attribute based first arrival picking methods
基于地震时窗属性特征拾取初至方法对比研究
Resolution of common multiple first breaks in seismic exploration
地震勘探中的几种常见“多初至”现象解析
Preliminary Study on the Tremors with Special Frequency Recorded by Seismograph Before Wenchuan Earthquake and Its Charaters
汶川地震临震地脉动记录特殊频率波动现象及其重现性初步研究
A Preliminary Study on Extraction of Earthquake-related OLR Anomalies Using Wavelet Packet Decomposition
基于小波包分析的OLR地震异常信息提取初探
the aftermath of war [an earthquake]
战争 [地震] 的余波
The 1975 Haicheng M=7.3 earthquake affected whole Korean Peninsula and eyen Kyushu, Japan.
1975年中国海城7.3级地震波及整个朝鲜半岛，乃至日本九州地区。
Refraction First-beak Statics Method under Complex Near-surface Conditions;
复杂地表条件下初至折射波静校正方法研究
Tremors are caused by P and S shock waves and are also called preliminary tremors.
地动是由P冲击波和S冲击波引起的，也称为初期微震。