查询词典 seismic

The B seismic facies are located in the northwestern edge of the depression is inferred as delta plain sand and graveL The C2 seismic facies area is scatted along the basin-bounding fault in the south depres sion and is interpreted as an alluvial fan.

地震相A区主要位于两大沉积中心部位。为三角洲前缘泥砂。相带B位于沉积区的西北边缘为平坦三角洲的沙砾。相带C2沿着南部的盆地边缘断裂带分布，为冲积扇。

Quantitative research on effects of seismic source on space correlation of strong ground motion;2. The abecedarian analysis gives out the basic reason of why the earth vibrant noise can be regarded as a new seismic source of the future flat seis.

在已经进行的两次探索性观测试验中，得到运行列车引发的地振动噪声可以通过天然地震观测台站和地震勘探常规地震仪接收到的证据，通过对数据的初步分析，进一步提出运行列车引发的地振动噪声可能成为铁路沿线浅层地震勘探震源的基本理由，并给出需要进一步深入研究的问题。

The forward modeling was applied to obtain the seismic synthetic seismogram of formations with different fluids and seismic attribute analysis was carried out on this basis.

采用正演模拟方法获得了含不同流体地层的地震合成记录，并在此基础上进行了地震属性分析。

Based on systematic analysis, nine seismometry parameters that response earthquakes well in North China are selected, which are seismic frequency, seismicity scale, mf-value, b-value, D-value,η-value, seismicity intensity entropy and seismicity time entropy. Using synthetic anomaly index method, we calculated their seismic anomaly index values separately and synthesized these values into a chronogenesis curve. After studying its short-term anomaly characteristics to earthquakes, the criterion index for M≥5.8 earthquakes in North China is obtained. The R-value test indicts that it has good prediction effect.

在系统分析并筛选出华北地区地震频度、地震活动标度、mf值、调制比、b值、D值、η值、地震活动强度熵和地震活动时间熵等映震较好的9项测震学参数基础上，应用综合异常指数方法，分别计算了它们各自的地震异常指数时序值，进而合成得到华北地区测震学综合异常指数时序曲线，通过研究其地震短期异常特征，给出了华北地区M≥5.8地震短期综合预测的判据指标，经R值评分检验表明，该指标具有较好的地震预测效能。

Seismic profiles indicate procedures for the formation and drawing self-collected seismic profile.

地震勘探剖面显示程序，用于形成和绘制自激自收地震勘探剖面。

Sparker source is a good type of seismic source used in marine engineering seismic prospecting. Because of the importation dependence before the tenth five-year period, the expense was enhanced and the period was extended of equipment maintenance.

电火花震源是海洋工程地震勘探作业中一种较好的震源，但"十五"之前我国的电火花震源主要依靠进口，仪器维护费用高、周期长。

GST is used for spectral decomposition of seismic data and its flow chart is provided, it is used for actual analysis of seismic data.

研究将其应用干地震资料的谱分解中，给出了基于广义S变换的谱分解业务流程，并对实际地震资料进行了分析。

In the aspect of the study of the application of HHT method, This dissertation has done three part of jobs: first, the Elcentro strong ground motion which is in common use in earhtquake engineering is analyzed by HHT method, getting its amplitude-frequency-time distribution and the comparison between the HHT marginal spectrum and Fourier spectrum is also made; second, the typical nonlinear system defined by the Duffing equation is analyzed by HHT method, getting its numerical value's amplitude-frequency-time distribution and the comparison between the HHT marginal spectrum and Fourier spectrum is also made; third, define the stationary degree of non-stationary signals making use of 3-D time-frequency spectrum and marginal spectrum, the stationary degree curve of Elcentro seismic recording is protracted according to its defining formula, the stationary degree curve of Elcentro seismic recording which change with time is protracted according to similiar definition.

在HHT方法的应用研究方面，本文做了三部分的工作：首先，利用HHT方法分析了地震工程中常用的Elcentro非平稳强震记录，得到了该记录的振幅－频率－时间分布特性，并将得到的边际谱与傅立叶谱做了比较；其次，应用HHT方法分析了典型的非线性系统－Duffing方程，得到了该方程数值解的振幅－频率－时间分布特性，并将得到的边际谱与傅立叶谱做了比较；最后，利用三维时频谱与边际谱定义了非平稳信号的平稳度，并依照其定义式绘制了Elcentro地震波记录的平稳度曲线，依照类似与依赖与频率变化的平稳度定义，初步尝试编程绘制了Elcentro地震波随时间变化的平稳度曲线。

In the study area,six seismic sequences are divided and more than seven seismic facies are identified, including parallel mat shaped, subparallel mat shaped, foreset, wave shaped, lenticular, filling a...

这些地震相在平面分布上具有差异性，而在垂向演化上具有继承性和新生性

Subsurface imaging is the primary aim of seismic exploration; the theory and techniques of seismic...

研究地下地质结构是地震勘探的主要目的，地震成像理论和技术是地震勘探的核心内容。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失