查询词典 seismic

Aimed at the zone of interest in the Q 3D seismic survey, which is characterized by thin sand body as well as the quickly lateral alternation, three inversion methods of Strata software are put into use, including the 3-D wave impedance inversion, the well log parameter inversion, and multi\|attribute gamma inversion.

针对Q三维地震工区目的层砂体薄、横向变化快的特点，在Strata软件上相继采用了三维波阻抗反演、测井参数反演和多属性伽马反演3种反演方法进行试验，最终确定了多属性伽马反演方法能较好地解决利用地震资料进行储层预测的一些问题，从而为工区勘探开发提供了可靠的高精度反演资料。

Then the computation processes of the wedge sliding safety factor considering seismic influences in 3DEC are carried out, and two important steps in the compute process are given: the determination of the area of triangle, the volume of tetrahedron in 3D and the intersect line vector of two joint faces.

最后，分析考虑地震影响下楔体安全系数计算在3DEC中的实现过程，并且给出计算过程中的2个重要步骤，确定空间三角形的面积和四面体的体积以及确定两节理面的交线矢量。

The inversion in seismic tomography usually comes down to solving a linear equation group.

地震层析成像中的反演常常归结为一个线性方程组的求解。

Singular value decomposition and Least Squares QR factorization are two basic methods for a linear equation group in seismic tomography.

奇异值分解法和最小平方QR分解法是求解反演成像中线性方程组的两种基本解法。

The propagation matrix method used widely in stratified media is extended to laterally inho-mogeneous media,and a numerical method known as generalized propagation matrix method for simulating elastic seismic wave propagation in inhomogeneous media is presented by using mixed variable elastic wave equation and matrix exponent solution of system of linear ordinary differential equations.

应用混合变量弹性动力学方程和线性常微分方程组的矩阵指数解法，将层状介质中广泛应用的弹性波传播矩阵解法推广至横向非均匀介质，给出了一种可计算复杂地质体中弹性波传播的广义传播矩阵数值解法。

Comparing with the omphacite fabric plots shows that the [001] preferred orientation is parallel to stretching lineation, meaning that the omphacite LPO is the main cause of seismic wave anisotropy.

实测波速的最大和最小值分别为平行线理和垂直面理方向，对比绿辉石的组构图就会发现，[001]极密方向即为线理方向，这说明绿辉石LPO是形成超高压榴辉岩波速各向异性的主要因素。

General procedure for liquation experiment of tailing dam s has been generalized,that is,preliminary identification has to be done for tailing dam s according to Design Code for seismic building's identification conditions.

概述尾矿坝液化试验判别的一般步骤，即根据《建筑抗震设计规范》中的初判条件对尾矿坝土层进行初判，在尾矿坝土层不满足初判的条件下，利用标准贯入试验对尾矿坝是否存在液化危害进行复判。

The diversity of morphological features and the absence of modern analogies lead to a lively debate on the origin of the MT structure. Lots of models have been built to explain the formation of the MT structure, which can be grouped into two categories: the model of seismic-induced liquation and that of biogenetic origin.

由于形态多样且缺乏现代的类比物，国内外地质学家曾先后建立多种模式来解释其成因，这些模式大致可以归为两类：地震液化模式和生物成因模式。

With the progress of lithology and accurate seismic exploration, the analysis of near surface structure becomes more important.

随着岩性和精细地震勘探进一步的拓展，近地表结构的综合分析显得尤为重要。

In order to provide the lithology and sedimentary information,seismic data should be preprocessed before coherence calculating.

为了使相干体数据提供岩性解释和沉积特征描述方面的信息，需要对地震数据进行预处理。

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。