查询词典 seismic

Re-calculation of the Gulf region over the next 30 years the probability of earthquake risk; access to the prehistoric earthquake in the time and strength, strike-slip fault with the city's fault slip rate of new information; development of the Gulf region, the new three-dimensional structure of the crust and sedimentary rock velocity model ; Calculation in the Gulf region's history, location and intensity of the earthquake, regional seismicity rate changes over time, little is known about the fault is, unknown thrust fault and the fault rate of seismic activity; development of the Quaternary sedimentary rocks in the area of new digital map .

重新计算海湾地区未来30年地震危险概率；获取史前大地震的时间和强度、城市内走滑断层的断层滑动速率的新的信息；发展海湾地区新的地壳三维结构和岩石沉积岩速度模型；计算海湾地区历史地震的位置和强度、区域地震活动性速率随时间的变化、了解甚少的正断层、逆断层及未知断层的地震活动速率；发展该地区第四纪沉积岩的新的数字地图。

In this paper, the seismic response of a high pier three-span continuous box girder bridge is detailed calculated, and the measures that prevent beam down and crushing pillar to damage of the structure in big earthquake is advanced.

通过时一座高墩三跨连续箱梁桥的地震响应进行数值模拟计算，分析了高墩桥梁的地震响应特点，提出了高墩桥梁在大震作用下应采取防止落梁及墩柱压渍破坏的构造措施。

An analytical expression is presented based on total probability theory to describe the mean annual rate of structural performance level reaching or exceeding a specific limit state, and the analytical solutions are adopted to analyze the seismic risk of a three-span rigid-frame bridge in a specific hazard environment.

六、在全概率理论的基础上推导了结构在特定地震危险性水平下的年平均达到或超过指定极限状态的概率的解析表达式，并用此解析表达式对一个三跨连续刚构桥结构进行了在特定地震环境下的地震危害性研究。

A three-span bridge girder is numerically examined, and the results show that its seismic responses under the optimal control of additional dampers at the supports are notably decreased.

实例分析了一三跨连续桥梁结构，结果表明，在支承处施加优化阻尼控制，其地震反应得到了显著地降低。

On this basis, the seismic response analysis of a three-span continuous middle-supported steel arch bridge with a main span of 428m is conducted under different input conditions of uniform excitation, traveling wave excitation and multi-excitation.

在此基础上分别考察了一座主跨428m的三跨连续中承式钢拱桥在一致激励、行波激励和多点激励下的地震反应规律。

Three-pass differential interferometry, ultrashort baseline and external DEM based repeat-pass SAR interferometry are employed to assess the seismic displacement.The final results show that the external DEM based repeat-pass InSAR is better than three-pass differential method in such area.

本研究分别进行了三路差分干涉、超短基线重轨干涉和基于外部DEM的重轨干涉处理方法的实验，对于结果的对比分析表明，基于外部DEM的重轨干涉方法在该类地区应用效果优于三路差分方法。

Using three-pass differential InSAR method for Mani earthquake, we got the interferometric fringes of co-seismic displacement field and found that, the displacement field is anomalistic ellipse-shaped with the long axis in NWW direction and the rupture is left-lateral.

在玛尼震区采用了三路差分干涉方法，提取出了地震同震形变场的干涉条纹，经分析发现：该地震形变场呈长轴近北东东向不规则椭圆形分布，且断裂为左行平移性质。

Although plenty of useful information on kinematics and dynamics is contained in the three-component seismic data,the signal is usually contaminated by all kinds of random noise,which brings up some obstacles for data processing and interpretation.

三分量地震资料包含着丰富的运动学和动力学信息，各种随机噪声的存在严重降低了资料的信噪比，给有效信息的提取带来了一定的困难。

In order to improve the resolution and accuracy of 3-D seismic exploration, a novel type of three-component photoelastic fiber optic accelerometer is designed.

为提高三维地震勘探的分辨率和精度，设计了一种新型的三分量光弹光纤加速度传感器，对加速度的敏感由光弹晶体、质量块、复合臂弹簧片构成的弹性系统实现。

In this paper,we present a method to enhance the signal/noise ratio of three-component seismic data by an adaptive polarization filter.To achieve this aim,the matrix of spectrum density is constructed,after the introduction of multi-taper method,to compute th...

本文在引入多窗谱分析方法的基础上，通过对谱密度矩阵特征问题的求解提取三分量地震记录的偏振参数，实现频率域偏振分析；根据所求得的偏振参数以及随机噪声和有效信号的偏振特性差异，设计相应的自适应滤波器，通过该滤波器的滤波作用，最终实现压制随机噪声的目的。

Salt is good, but if the salt becomes flat and tasteless, with what do you season it?

14：33 盐本是好的，盐若失了味，可用什么叫它再咸呢？

He reiterated that the PLA is an army of the people under the leadership of the Communist Party of China.

他重申，人民解放军是在中国共产党领导下的人民军队。