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   layered velocity 的翻译结果: 查询用时:0.13秒
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layered velocity
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  “layered velocity”译为未确定词的双语例句
     A RAPID AND ACCURATE TWO POINT RAY TRACING METHOD IN HORIZONTALLY LAYERED VELOCITY MODEL
     水平层状介质中的快速两点间射线追踪方法
短句来源
     A rapid and accurate method for two point ray tracing in horizontally layered velocity model is presented in this paper.
     提出了一种快速准确的水平层状介质中两点间的射线追踪方法.
短句来源
  相似匹配句对
     Inversion of the Velocity and Density Profiles of the Layered Ocean Bottom by Reflection
     分层海底的声速和密度剖面反演
     Influences of the layered soil properties such as shear velocity; thickness; density;
     讨论了分层介质剪切波速、厚度、密度、泊松比、阻尼参数对振型频散曲线的影响;
短句来源
     F—K MIGRATION WITH VARIABLE VELOCITY
     变速的F—K偏移
短句来源
     RUPTURE VELOCITY AND EARTHQUAKES
     破裂速度和地震
短句来源
     ON LAYERED STRUCTURE OF LITHOSPilERE
     论岩石圈的层状构造
短句来源
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  layered velocity
-A layered velocity is obtained using arrival-time data of P and S waves from local earthquakes for the Central Region of Madagascar.
      
Layered Velocity Models of the Western Bohemia Region
      
Therefore, this method is a good choice for two-point ray tracing problems in horizontally layered velocity model and is efficient enough to be applied to a wide range of seismic problems.
      
A rapid and accurate method for two-point ray tracing in horizontally layered velocity model is presented in this paper.
      
A rapid and accurate two-point ray tracing method in horizontally layered velocity model
      
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With a new earthquake location program HYPO81, developed by W.H. K. Lee, G. Nelson, P. Ward, and the author, the earthquakes recorded by the Beijing Seismic Network from Jan. 1, 1979 through June 30, 1980 are relocated and the results are compared with the earlier reported ones. The features of the new location program can be summarized as: (1) different multi-layered velocity models can be used for different group of stations and low velocity layers are allowed to be included in the models; (2)...

With a new earthquake location program HYPO81, developed by W.H. K. Lee, G. Nelson, P. Ward, and the author, the earthquakes recorded by the Beijing Seismic Network from Jan. 1, 1979 through June 30, 1980 are relocated and the results are compared with the earlier reported ones. The features of the new location program can be summarized as: (1) different multi-layered velocity models can be used for different group of stations and low velocity layers are allowed to be included in the models; (2) several kinds of weightings are used; (3) single value decomposition technique is used in the least-squares iterations; (4) the quality of the results is evaluated in several ways; and (5) different kinds of phase data can be used.In order to reflect the lateral variation of the velocity structure in Beijing area, three different multilayered velocity models are used for the northwestern mountain area, the southeastern plain, and the area between them, respectivety. In locating the earthquakes, direct P, refrected P, and direct S arrival data are used. According to the quality criteria in HYP081, over three quarters of the events relocated fall into the catagories of quality C and D, indicating the necessity of increasing stations in the network and improving the accuracy of the phase data.

利用 W.H.K.Lee、G.Nelson、P.Ward 和本文作者新发展的区域台网地震定位程序HYPO81对北京台网1979年1月1日至1980年6月30日记录的地震作了重新定位处理,并与原台网测定结果进行了比较.新定位程序的特点是:(1)各台站可设定自己的分层速度模型且允许存在低速层;(2)对数据作了多种加权;(3)迭代求解条件方程时采用奇异值分解最小二乘法;(4)对定位结果给出多方面质量评价;(5)可使用多种震相到时数据.为了反映北京地区速度结构的横向差异,对西北部山区、东南部平原和中间过渡区分别使用不同的水平分层模型.定位时使用了直达波(?)、(?)及绕射波 P_n.根据 HYPO81程序中给定的定位质量标准,大部分地震属于 C 类和 D 类,说明加密台网和提高到时读数精度是十分必要的.

The general curstal configuration in Yunnan is characterized as a tongue shape protruding southeastward, and Moho relief underneath is basically featuring one uplift and two depressions between the front and back of the tongue. The obtained result from DSS in general is consistent with the crustal shape proved by the anomalous gravity inversion, suggesting Dukou and Chuxiong upper mantle uplifts. The result from DSS indicates that the lateral variation of crustal structure in Yunnan is very obvious, making the...

The general curstal configuration in Yunnan is characterized as a tongue shape protruding southeastward, and Moho relief underneath is basically featuring one uplift and two depressions between the front and back of the tongue. The obtained result from DSS in general is consistent with the crustal shape proved by the anomalous gravity inversion, suggesting Dukou and Chuxiong upper mantle uplifts. The result from DSS indicates that the lateral variation of crustal structure in Yunnan is very obvious, making the Red River fault belt as a main boundary. South of the Red River fault belt, the crustal structure is featuring approximately a two-layered velocity model as the dominent factor, and Moho surface deepens from south to north and the crust thickens from 37-40km. North of the Red River fault belt, the crust is a three-layered velocity model, and Moho surface is shallower in the southeast and deeper in the northwest and the crust thickens from 43 to 47km or more.In addition, some evidences for deep faulting are obtained from DSS along those fault belts of Xiaojiang, Nujiang, LancangJiang, Yuanmou, Luzhijiang and QuJiang. In Longling seismic area and at Pupeng, Nanhua, deep faulting with remarkable sclae is also obtained.

云南地壳轮廓呈向东南突出之舌形,在前舌与后舌之间,莫霍面起伏基本上呈一隆两凹状。地震测深结果与重力异常反演地壳轮廓大体一致,探测到渡口楚雄幔隆等上地幔起伏。测深结果表明,云南地壳结构横向变化显著,主要分界在红河断裂带。红河带以南,地壳结构近似于以两层模式为主,莫霍面南浅北深,壳厚37—40公里。红河带以北为三层地壳结构,东南浅西北深,壳厚约 43—47公里或更大。还探测到小江、怒江、澜沧江以及元谋绿汁江断裂带,曲江等断裂均有深部显示。龙陵震区及南华普棚也探测到了规模可观的深部断裂。

The levelling lines at a site, Nanjing city have been improved after geological conditions are determined by layered velocity structure with retraction method and drill hole sampling in the site. Levelling results are satisfactory to all of indexes after the improvement.

本文介绍了应用地震小折射法探查南京短水准场地地质环境,并据此改造场地。在改造场地后,水准测量结果表明,各项要求基本达到,效果令人满意。

 
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