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strong earthquake region
相关语句
  强震区
     Kezhi'er reservoir is a large hydro project built on the active fault and strong earthquake region with10years construc-tion. The reservoir has been operating for10years,the maximum water level is up to1148.3m near to the maximum profitable water level of1149.6m.
     克孜尔水库是在活断层、强震区建造的一座大型水利枢纽工程,历时10a建成,水库运行已10a,库水位最高达1148.3m,已接近最高兴利水位1149.6m。
短句来源
     SOME PROBLEMS OF A CAST-IN-PLACE PRESTRESSED CONCRETE FRAMED STRUCTURE IN A STRONG EARTHQUAKE REGION
     强震区现浇预应力框架结构设计中的若干问题
短句来源
     At present, whereas so many reasons such as its using function changing from irrigation to city water supply, the increasing of importance, the original design standard on the low side, the damage and aging of structure, the demand for seismic fortify in strong earthquake region and offering data of technical alteration for adding flux aftertime, it is important for safety and seismic capability of this aqueduct bridge.
     目前,该渡槽使用功能由灌溉输水改为城市供水、实际重要性提高、鉴于原设计标准偏低、结构的病害和老化破损以及地处强震区对抗震设防的要求,为日后加大流量进行技术改造提供依据,因而急需对渡槽作较详细的安全可靠性评估和抗震性能评估。
短句来源
  “strong earthquake region”译为未确定词的双语例句
     Study on Crust Structure of Haiyuan Strong Earthquake Region
     海原8.5级大震区地壳结构探测研究
短句来源
     Monitoring ability of Fujian digital seismic network to the historical strong earthquake region of Quanzhou
     福建数字地震台网对泉州地震的监测能力
短句来源
     PASSIVE SEISMIC EXPERIMENT IN XINGJIANGJIASHI STRONG EARTHQUAKE REGION AND DISCUSSION ON ITS SEISMIC GENESIS
     新疆伽师强震群区三维地壳上地幔S波速度结构及其地震成因的探讨
短句来源
     FEATURES OF THE S-WAVE SPLITTING AND STRESS FIELDIN THE XINJIANG JIASHI STRONG EARTHQUAKE REGION
     新疆伽师强震群区的横波分裂与应力场特征
短句来源
  相似匹配句对
     Study on Crust Structure of Haiyuan Strong Earthquake Region
     海原8.5级大震区地壳结构探测研究
短句来源
     GROUP FEATURES OF STRONG EARTHQUAKE IN SOUTH-WEST REGION
     西南地区强震活动的群体特征
短句来源
     Earthquake
     地震
短句来源
     EARTHQUAKE
     日本防震与大地震
短句来源
     Research on relation of deep structure to strong earthquake activity in Sichuan-Yunnan region
     关于川滇地区深部结构与强震活动关系的研究
短句来源
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During the past 4 years (1975-1979) eight seismic profiles have been compiled by using the method of earthquake-generating converted waves in the Beijing-Tianjin-Tangshan region. Some details about the method of interpretating these data and the important results obtained are presented in this paper. This method is very useful in the regional investigations for earth's crust and upper mantle.The comparison of the deep-seated structures and the distribution of earthquakes in the studied region...

During the past 4 years (1975-1979) eight seismic profiles have been compiled by using the method of earthquake-generating converted waves in the Beijing-Tianjin-Tangshan region. Some details about the method of interpretating these data and the important results obtained are presented in this paper. This method is very useful in the regional investigations for earth's crust and upper mantle.The comparison of the deep-seated structures and the distribution of earthquakes in the studied region indicates that all hypocentres of strong earthquakes just filled in some particular position of the granitic layer and that the Tangshan and Mafan strong earthquake regions are similar each other in the deep-seated structure characteristics, such as relative uplift of the granitic layer, intensive depression (concavity) of interfaces in upper mantle, sharp thickening of lithosphere and existence of deep-seated faults in the region under investigation.

1975—1979年间在京津唐地区完成了八条地震转换波测深的剖面工作,本文介绍所取得的主要成果。结果表明转换波法用于地壳、上地幔深部结构的探测是有效的。深部构造剖面与震源分布的对比表明,本区几乎所有强震震源都分布在“花岗岩”层的某些特殊部位上。唐山和马坊大震地区的深部构造具有相似的特征,这就是“花岗岩”层的相对隆起,上地幔界面的强烈凹陷,岩石圈相应地急剧增厚以及存在深大断裂。

The Beijing-Tianjin-Tangshan region and adjacent area are one of strong earthquake region in China and technically have undergone intense disturbance resulting in uprise of surrounding mountain regions and intensive fracture and subsidence of the plain since Cenozoic age. MT measurements at 30 sites have been carried out since 1976. Data of MT were processed by the tensor impedance method and the apparent resistivity curves of E polarization were fitted to 1-D models for obtainning the electrical...

The Beijing-Tianjin-Tangshan region and adjacent area are one of strong earthquake region in China and technically have undergone intense disturbance resulting in uprise of surrounding mountain regions and intensive fracture and subsidence of the plain since Cenozoic age. MT measurements at 30 sites have been carried out since 1976. Data of MT were processed by the tensor impedance method and the apparent resistivity curves of E polarization were fitted to 1-D models for obtainning the electrical structure of the crust and upper mantle. The results of interpretation indicate that within the intermediate crust, there widely exists a high conductive layer with thickness of several km and resistivity from several to more than ten Ωm, and it corresponds to the low velocity layer in the crust determined by DSS; a high conductive asthenosphere with resistivity of one to several Ωm lays at a depth from 50 to 80 km beneath the plain and at a depth of more t han 100 km in the surrounding mountain regions, and it corresponds to the low velocity layer in the upper mantle determined by seismic methods. The variable tendency of the depth of high conductive asthenosphere receives a strong support from the heat flow measurements, Curie isothermic surface calculations and geochemical studies of the Cenozoic basalts. The strong shocks occurred there mainly along the margins of the uplift of the high conductive asthenosphere and the foci were located generally over the high conductive layer in the intermediate crust.

京津唐渤及其周围地区是我国的强烈地震活动区之一。自1976年以来,我们在该区开展大地电磁测深工作,完成了近30个测点。所得结果表明,本区壳内存在高导层,与地震方法确定的壳内低速层一致。平原内上地幔高导层埋深50—80公里,山区大于100公里,与地震方法确定的上地幔低速层基本一致,同时与大地热流测量、居里等温面计算和对新生代玄武岩地球化学研究结果基本吻合。本区绝大多数地震位于壳内高导层之上,强烈地震主要发生在上地幔高导层隆起的边缘。最后讨论了本区强震活动与壳内和上地幔高导层的关系。

According to some observational data obtained in small-earthquake regions, the features of normal dynamic state in such regions are as follows: In these regions, seismicity levels obviously remain unchanged for many years, the total "year-frequency of earthquakes and strain-energy release are in linearity, the maximum magnitude of shocks in every year is relatively stable and the b-value is high. Other normal dynamic characteristics of the precursory observation curves is that the...

According to some observational data obtained in small-earthquake regions, the features of normal dynamic state in such regions are as follows: In these regions, seismicity levels obviously remain unchanged for many years, the total "year-frequency of earthquakes and strain-energy release are in linearity, the maximum magnitude of shocks in every year is relatively stable and the b-value is high. Other normal dynamic characteristics of the precursory observation curves is that the curve fluctuation is relatively symmetric, the variation is relatively even and smooth and the repetition and regularity are relatively obvious. The residual difference between this and the month-averaged value is in normal distribution. The above features in small-earthquake regions are absolutely different with the anomalous patterns before earthquakes in the strong-earthquake regions. It is of significance for recognizing the great seismogenic process and anomalous period to study the normal dynamic state.

在我国地震活动的低潮期,国内对正常动态的讨论有明显加强,但大多数作者从单一观测项目研究强震区“平静期”的实测值正常动态,并假定平静期内的观测资料中不包含孕震信息,研究的内容集中于正常动态的类型和年变的原因。 本文试图根据小震区的观测资料,分析地震活动和其它前兆观测曲线的正常动态特征,讨论它与强震区震前异常的某些差异,期望对本区将来可能出现的强震震前异常有所识别,并为其它强震区的前兆异常识别提供参考资料。

 
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