查询词典 seismic

Therefore, it is necessary to relocate the shot point. The secondary positioning method of shot point based on wave equation is similar to conventional seismic migration.

在地震勘探中，由于各种因素的影响会出现炮点定位不准确的情况，这将严重影响后续的地震资料处理工作，因此需要对炮点进行二次定位。

A method for analyzing 3D seismic dynamic reliability of gravity dam is presented based on First-Passage theory, design point method and response spectrum method.

摘要基于首次超越破坏机制的理论，在三维重力坝的地震动力可靠性分析方面作了有益的探索。

The Poisson's ratio, an important parameter to understand the interior of the earth, can be dertermined from the ratio of P- to S- seismic wave velocity.

泊松比做为了解地球内部介质一个非常重要的参数，在地震学上可以通过P波和S波速度的比值来确定。

Analysis of the feature and geometry of the normal compaction trend is used to establish the compaction trend with polynomial of degree 2 or 3 or polygonal line, and to predict the distribution of geopressure using the method of seismic transit time deviation -pore pressure gradient in Yinggehai bas.

研究了压力预测的方法，推导地震声波时差差值—压力梯度法的计算公式并指出它的优点是能够充分利用已知的钻井实测压力资料；从理论上分析了正常压实趋势线的性质和形态，并用2~3次多项式和分段函数建立正常压实趋势线；根据莺歌海盆地高温高压及沉积速率高、泥底辟发育的特征，建立合理的压实趋势线，并用声波时差差值—压力梯度法预测了莺歌海盆地的压力分布。

Fifth, the effects of pore fluid and its distribution on seismic properties were studied.

第五，讨论了孔隙流体及其分布对地震属性的影响。

On this basis, the effect of porosity and pore-fluid on seismic reflection was studied.

在此基础上，研究了孔隙及孔隙流体对地震反射特征的影响。

Sub-volcanic rocks include andesitic porphyrite, rhylitic porphyry, cryptoexplosive breccia as well as autobreccia etc.(2) Volcanic lithofacies——through the observation of cores, identification of thin sections and interpretation of well logs and seismic data, there are 8 kinds of lithofacies for the volcanic rocks of Yingcheng Formation are identified: fallout facies, effusion facies, pyroclastic flow facies, base surges facies, lahar facies, eruption-sedimentary facies, subvolcanic facies and extrusion facies.(3) Three types of eruption——i. e. explosion, effusion and surge.(4) Two kinds of eruptive environments——Subaerial (e. g. volcano in Well Shangshen 3) and subaqueous .(5) Three remarkable volcanic apparatus in Shengping-Wangjiatun area——layered, micro-shield and cone volcanoes according to volcanic processes and lithofacies distribution.

次火山岩有安山玢岩、流纹斑岩、隐爆角砾岩及自碎角砾岩等；(2)火山岩相——通过岩芯观察、镜下鉴定、测井与地震资料解释，营城组火山岩中发育8种岩相类型，即爆发空落相、溢流相、火山碎屑流、基底涌流相、喷发沉积相、火山泥石流相、侵出相和次火山相等；(3)火山喷发的形式——有爆发、溢流和涌流三种；(4)火山喷发环境——有陆上(如尚深3井火山)和水下两种；(5)火山机构类型——根据火山作用特点和岩相分布特征，在升平—汪家屯地区识别出三类截然不同的火山机构，即层火山、微型盾火山和渣锥火山。

The posterior probabilities give the probability of a particular state of nature, given a particular finding from the seismic survey.

后验概率给出了在特定的勘探结果下出现特定的自然状态的概率

Strong shocks can be affected each other, which is proved by seismic study and precursory research.

另外，在地震学和前兆学研究中还发现了许多典型的强震间相互影响的实例。

The manifestation of seismic precursory complexity is summed up in details in the paper.

论文针对我国两个典型的地震活动区：华北地区和川滇地区的地震活动最基本的特征进行了解释。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。