查询词典 seismic

The investigation and study of seismic hazard in frozen soils deposit region by the West of Kunlun mountain pass M 8.1 earthquake in 2001 shows that there is frozen soils distribution in the region, which mainly result from the glacial deposit, alluvial deposits, deluvial deposits, lacustrine deposits, and of which the depth varies greatly along the rupture.

通过对2001年昆仑山口西8.1级地震区冻土震害考察研究表明，震区主要存在冰碛、冲积、洪积和湖积等成因的冻土，沿地震破裂带冻土厚度变化较大。

Presence of multiples leads to poor quality in main stages of offshore seismic data processing, such as velocity analysis, stacking and imaging. Three basic multiple attenuating methods are reviewed; and a more effective multiple attenuator is achieved by joining them. As the first step, shot or receiver records are extrapolated by wave-equation datum algorithms. The extrapolation will establish a model of waterbottom multiples. Waterbotton multiples will then be removed by subtracting the extrapolated records from the original records. After that, predictive deconvolution is used to attenuate the multiples created by source ghost. Finaly, RADON transformation is adopted to separate peg-leg multiples and residual water-bottom multiples from the original data in the τ-p domain.

地震勘探尤其是海上地震勘探中存在着各类多次波，由于多次波的存在严重影响了速度分析、叠加、偏移成像等地震资料处理，海上多次波主要有全程多次波和层间多次两大类，为了压制海上不同类型的多次波，本文首先分析波场外推、预测反褶积和拉东变换衰减不同多次波的理论基础，然后联合采用这些方法，分别衰减全程多次波和层间多次波；即：首先对炮记录或者接收点记录进行波场外推，建立海底多次波模型，预测并减去全程多次波，然后利用预测反褶积衰减掉周期性明显的多次波，最后将数据转换到τ-p 域，用拉冬变换根据同一时间多次波和有效波在速度等方面的差异，进一步分离层间多次波和剩余的全程多次波，并在该域中切除分离出的多次波，从而实现联合多次波衰减处理。

It studies the variations of deformation modulus, P wave velocity and acoustic emission in the process of rock fracture by cycle loading. Further, it is considered that the occurrence of earthquake outside Lijiang seismic area made the forced process changed, therefore, the Lijiang M7 earthquake came later, the impending precursory anomalies became unclear or complicated, and the magnitude decreased.

用循环加载研究岩石破裂孕育过程中变形模量、纵波速度和声发射的变化特征，进而探讨认为丽江地区外部地震的发生使受力过程发生了变化，从而使丽江7 级地震延迟发生，也使临近地震的前兆异常不明显或更复杂，并使丽江地震震级减小。

The sedimentary rocks of graben-fill phase is divided into two seismic sequences of A and B.

地堑充填时期的沉积可以分为两个地震层序A和B。

Taiwan Island is located in circum-Pacific seismic belt and the volcanic belt, crustal instability, is a multi-shock region.

台湾岛位于环太平洋地震带和火山带上，地壳不稳，是一个多震的地区。

Taiwan is situated at the circum-Pacific seismic belt, as one of the areas of most frequent sensible earthquakes in the world. According to the statistics from Central Weather Bureau, Taiwan is on average experiences thousands of earthquakes every year and specifically, hundreds of sensible ones.

中文摘要台湾地区位处於环太平洋地震带，根据中央气象局统计，台湾平均每年发生地震次数多达千余次，有感地震更超过百次之多，属於世界上有感地震最频发的地区之ㄧ。

Although the physics of seismic waves is complex, ground shaking can be explained in terms of body waves, compressional, or P, and shear, or S, and surface waves, Rayleigh and Love.

尽管震动形成的物理波是复杂的，但地动可以由以下几种波来说明：体波，纵波或P波，横波或S波，表面波，瑞利波以及洛夫波。

Here is a map of U.S. Geological Survey seismic stations in the San Francisco Bay Area and 6 seismograms from an earthquake

这是一张来自美国地质研究所旧金山海湾地区地震站的地图和6张同一地震产生的震动图。

Here is a map of U.S. Geological Survey seismic stations in the San Francisco Bay Area and 6 seismograms from an earthquake

这是一张来自美国地质调查所旧金山海湾地区地震站的地图和6张同一地震产生的震动图。

Seismic regions in which large intermediate and deep focus earthquakes have significant 18.6 years cycle have been determined by analyzing correlation between the events and the tropic longitude of lunar ascending node.

分析全球中源和深源大地震与月球交点运动的关系，确定了15个地区的中源和深源大地震有明显的18.6a地震轮回。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。