Locating the distribution of coalbed methane enriched area using seismic P-wave data;
利用地震P波确定煤层瓦斯富集带的分布
Seismic P-wave Travel-time Tomography in Heterogeneous and Anisotropic Media
非均匀各向异性介质的地震P波走时层析成像研究
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
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。
Study on the Early Warning System Method Based on a Single Station s P Wave Record;
基于单台P波记录的早期地震预警方法研究
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。
THE APPLICATION OF FOCAL MECHANISM DETERMINATIONS OF MODERATE-SMALL EARTHQUAKES IN YUNNAN PROVINCE USING THE FIRST MOTION AND AMPLITUDE RATIO OF P AND S WAVE
用P波、S波初动和振幅比计算中小地震震源机制在云南地区的应用
seismic research, tremors, waves
地震的研究、 震动、 震波.
the aftermath of war [an earthquake]
战争 [地震] 的余波
Attenuation of P,S and coda waves in Longtan reservoir region
龙滩水库地区P波、S波和尾波衰减
Real-time detection of regional events and automatic P-phase identification from the vertical component of a single station record
应用单台垂向记录进行区域地震事件实时检测和直达P波初动自动识别
Seismic sections show the response of the earth to seismic waves.
地震剖面是地壳对地震波的响应。
The seismometers are usually termed geophones.
地震计一般称为地震检波器。
The Influence of Di-directional Earthquake to Selecting Waves in Time History Analysis and Column Design
双向地震对地震波选取及柱抗震设计的影响
There are two chief kinds of seismic waves: body waves and surface waves.
有两种主要的地震波：体波和面波。
short spread of detectors
小距离排列地震检波仪
seismometer testing apparatus
地震检波器测试仪器
seismometer resonant frequency
地震检波器谐振频率
three-component geophone array
三分向地震检波器台阵