地震

The measurement of shear wave velocity of soils is an important aspect in dynamic soil mechanics and seismic engineering, and is also a new developing technology which can be used in both seismic exploration and scientific evaluation on the improved foundation in recent years.

土体剪切波速度的测试是土动力学和地震工程学研究中的一项重要内容，也是近年来发展起来的浅层地震勘探和对已加固地基进行科学评价的一项新技术。

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。

It struck around 3:30 p.m. local time and measured 6.1 in magnitude, according to the U.S. Geological Survey.

美国地震调查局透露，地震发生的时间是当地时间下午三点钟，震级为6.1级。

U.S. Geological Survey seismologists subsequently found a strong link between the quakes and the refilling of the reservoir.

美国地质勘探局的地震学家其后发现这些地震活动和水库的重新满容有强关联性。

Wind, precipitation, temperature, and barometric pressure changes affect only the surface and shallow subsurface of the Earth.

地震发生于天气不可能影响到的地壳深层，造成地震的能量也远远超过气候变化所需的能量。

Secondly, to analyze seismic response of the concrete gravity dam, subspace iterative method was applied to compute free vibration period of the dam, time integration method was builtup for the seismic time history analysis and formulation of coupled vibration of reservoir water and dam were also deduced.

其次，针对混凝土重力坝的地震响应分析问题，采用子空间迭代法计算了大坝的自振周期，建立了地震时程分析的逐步积分方法，并且推导了库水和坝体耦合振动的理论公式。

Based on seismic and well data, seismic interpretation and restoration of balanced crosssections were carried out, and the results indicate:（1） Besides basement involvement structures in the part segment of No. 1 fault, the faults were dominated by detachment faults which formed in Middle-Lower Cambrian salt layers.（2） The deformation styles were different in the upon and underneath salt layers, and the distortion was stronger in the upon salt layer than that in the underneath salt layer.（3） The stratified deformation was coordinated by salt layers.

应用地震和钻井资料，在地震资料解释和分层构造复原基础上，研究认为：（1）除塔中Ⅰ号断裂带部分段为基底卷入式外，塔中低凸起主要逆冲断裂以滑脱式为主，主逆冲断裂多在中、下寒武统膏盐层系滑脱；（2）盐上地层变形特征与盐下地层变形特征不同，盐上地层构造变形强度总体上大于盐下地层构造变形强度；（3）膏盐层系在分层构造变形过程中起到协调变形作用；（4）塔中低凸起分层构造变形主要受控于俯冲造山及膏盐层系滑脱作用。

Based on this, the characteristics of related celestial body positions at the occurrence time of the triggered earthquakes are studied. The distribution patterns, which have tidal_triggering physical basis, of lunar_solar ecliptic longitude differences and declinations and zenith distances are obtained.

在此基础上，对受到潮汐应力触发的地震发震时的天体位置特征进行了研究，得到了具有潮汐应力触发物理基础的地震时的月日黄经差、月日赤纬和月日天顶距的分布图像。

Seismic methods for mineral exploration have been applied into more fields than just ore body itself, and the large deepseated structures, such as orecontrolling structure, alteration zone, and key lithologic layer have become the targets of indirect seismic exploration.

金属矿地震找矿的应用范围得到了扩展，不再局限于矿体本身，控矿构造、蚀变晕、重要岩性层等大型深部构造单元成为了地震间接找矿的目标体。

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。