地震

Because of the crustal structure in the Central US which efficiently propagates seismic energy, shaking from earthquakes in this part of the country are felt at a much greater distance from the epicenters than similar size quakes in the Western US.

由于地壳结构，在美国中部有效地宣传地震能量，摇头，从地震在这部分的国家认为，在一个更大的距离震中较类似规模的地震是在美国西部。

However, the limited spatial distribution and the unpredictable occurrence of earthquakes, as well as the errors in the location of their epicenters, all these unfavorable factors heavily restrict the application of earthquakes in understanding the subsurface structure and its temporal variation in regional scale.

但是天然地震空间分布有限、发震时间无法预知且天然地震目前定位精度不高，这些因素大大限制了利用天然地震进行区域尺度介质的精细结构及其变化的研究。

Because the two earthquakes separated only 67 seconds and their epicenters were almost at the same site, the Central Weather Bureau called them "double-main shock".

因这两起地震发生时间仅隔六十七秒，且震央几乎在同一地点，气象局将这两个地震称为「双主震」地震。

The distance between the epicenter of the Linfen earthquakeh 1695 and the epicenters of many earth-quakes with magnitude≥7.0 in North China and M 8.0 in the continental area of China is calculated,and theordering features similar to isosceles triangle are discovered in the epicenter distribution pattern.

精确计算了1695年临汾地震与中国大陆部分8级地震和华北7级地震的震中距离，发现有等腰三角形的有序性。

In other parts of China where major earthquakes have been preceded by foreshocks, unusual behavior in rats, fish, and snakes were observed as early as three days prior to the earthquake, but continuing to several hours, or even a few minutes before.

在中国其他地区，大地震之前通常伴有前震，那儿的老鼠、鱼、蛇等动物的异常行为则早在地震发生三天前就有所表现，这种现象会一直持续到地震前几个小时甚至几分钟。

This dissertation studies the theories and methods of analysis and active control of nonlinear seimic responses of reinforced concrete frame — wall structures under earthquake motions.

本文研究在地震作用下钢筋混凝土框架—剪力墙结构的非线性地震反应与非线性地震反应主动控制的理论和方法。

The subject is the sequential reseach of the item of theory and experimentation reseach of hybrid-integrated optical acceleration seismic geophone (No. 49874031) and the item of theory and experimentation reseach of photoelectricity integrated acceleration seismic geophone imbursed (No. 40274047) by naitional neature science fund.

本文研究是国家自然科学基金资助项目&混合型集成光学加速度地震检波器理论与实验研究&(No.49874031)和&光电集成加速度地震检波技术理论与实验研究&(No.40274047)的后期研究课题，旨在将研究成功的各类干涉型光电集成加速度地震检波器推广应用。

Through index,the correction methods are put forward to the earthquake data in order to give the data more scientific,and the inaccuracy data are not quotation any more.

经过检索，对一部分地震数据提出修正意见，以提高引用地震数据文献的科学性，使不正确的地震数据停止被引用。

In application, the first coarse seismic facies classification effectively identified the channel, erevasse-splay, natural levee, alluvial flat and other subfacies etc, and the second fine reclassification aimed to the classified channel further identified the lateral bar, mid-channel bar, main channel sand body and other microfacies of a fluvial channel.

通过实际应用指出，初次的相对较粗的地震相分类研究可以有效地区分出了河道、决口扇、天然堤、河漫滩等沉积亚相，而针对刻画出的河道的再次地震相分类研究则可以有效地区分出了边滩、心滩和主河道砂体等沉积微相，并初步证实了地震相再分类研究在客观刻画地质体细节方面的优势。

Officials with China's National Seismograph Network Center said there were three temblors in the magnitude 3.0 range shortly before and immediately after the earthquake.

中国的地震网络监测中心说，在地震前后一共发生了3次强度在3级左右的小型地震。

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。