地震波

At the moment, the only data on the Earth's interior are the paths of earthquake waves that are reflected and refracted by the various layers of the planet's interior.

目前，地球内部的仅有数据就是地震波的射线路径；该路径由地球内部不同层圈反射和折射。

To improve the resolution and interpretative precision of crosswell seismic tomography is an evergr...

提高井间地震波层析成像的分辨率及解释精度，是一个永恒的课题。

ABSTRACT Parameter inversion of seismic wave is important not only in theory, but also in practice.

地震波参数反演具有重要的理论意义和实践意义。

This paper applies a software ANSYS to calculate the bridge of Kazi gulf in three-dimensional entity model, compute the left bridge under the initial and the gravity before gather together, carry on left bridge and the whole bridge'mode analyses, finally analyze the left bridge under artificial seismic waves.

本文应用大型有限元软件ANSYS 对卡子湾大桥三维实体模型进行分析，计算左桥合拢前在预应力和重力组合作用下的应力状况，进行左桥和整桥的模态分析，最后分析左桥在人工地震波作用下的动力时程反应。

While the new components having the same numbers with these original physical vectors are introduced and the new components are combined with those original physical components to form a new symplectic space, the ray problem of wave propagation in geometrical optics is converted into the problem of Lagrange submanifold in the symplectic space.

本论文的工作作为国家自然科学基金地震波传播与成像项目（NO.40174032）的一部分，得到如下结果：论文分析了利用Maslov方法求解非均匀介质中波动方程高频近似解的基本原理和求解过程，构造了介质系数只在一个方向变化时波动方程高频近似解的通用计算公式。

Research and analysis of forward prediction technology using seismic reflection wave in tunnel and laneway in China.

中国隧道及井巷地震波法超前探测技术研究分析。

The detection and forecast for geological structure ahead of the tunnel and laneway is a very difficult problem in the world. Many applied researches based on the method of the seismic reflection wave have been done in our country from 1990, and many successful practical examples are obtained. At the same time, the detecting methods also have different problems.

自20世纪90年代以来，反射地震波法作为一种主要的超前探测技术在我国国内隧道及井巷工程中取得了诸多成功应用的探测实例，同时在应用中不同探测方法也存在不少问题。

Seismic velocity is important to migration of seismic data, interpretation of lithology and lithofacies as well as prediction of reservoir.

地震波速度对地震资料偏移成像、岩性和岩相解释以及储层预测，均起着非常重要的作用。

By a series of processing and analyzing the three-dimensional space various graphs and images of seismic wave, many mechanical parameters of rock and soil are computed.

通过对三维数据结构的一系列处理分析形成三维空间地震波的各种图形图像，最终计算岩土体多种力学参数，从而实现对隧道及地下工程前方地质情况的判译、预报。

Based on the theory of elastic wave in anisotropy medium, the characteristic of the seismic wave is analyzed in this paper.

从各向异性介质的弹性波理论出发，本文系统地分析了各向异性土介质中地震波的传播特性。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。