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- bidirectional earthquake waves 双向地震波
- Three man-made earthquake waves are composed with the exceedance probability of 10% and 3%. 3．根据相关资料合成了100年超越概率为10%25和3%25的各三条人工地震波。
- Except this, we found that the average results of structure under three earthquake waves are dower with the results of spectrum analysis. 4.;在对结构进行弹性动力时程分析时，结构在人工波作用下的反应要大于实际波，且三条地震波作用下的平均值与谱分析结论相吻合。
- Seismometers That sounds a silly suggestion, but that was precisely the idea adopted in some of the early instruments (seismometers) for recording earthquake waves. 这听起来似乎是一种愚蠢的想法,但是早期记录地震波的仪器(测震仪)正是采用了这种思路。
- Bidirectional earthquake ground motion 双向地震动
- Violent earthquake waves will be produced when an underground spherically packed explosive is blasted,and their propagation mode is affected by many factors. 地下球形药包爆轰后将产生很强的地震波,其传播受到多种因素的影响。
- By using this program, stress response of buttresses is computed with longitudinal and transverse earthquake waves and some valuable results are obtained. 利用该程序计算了顺河向及横河向地震作用支墩的动应力响应，得出了一些有价值的结论。
- Strong earthquake wave, it go the rounds whole earth according to imperceptible speed and method. 强大的地震波，以人们感觉不到的速度和方式传遍整个地球。
- Earthquake responses of isolated upper structure and isolation bearing bave been analyzed under the action of earthquake waves with different magnitudes and types. 通过输入不同大小和类型的地震波，分析隔震上部结构和隔震支座的地震反应。
- That day afternoon, the earthquake wave of southwesterly direction affects quickly the countrywide other area that includes Beijing inside. 那天下午，来自西南方向的震波迅速波及到包括北京在内的全国其他地区。
- Taking the dam foundation grouting test effect of the Daliuhe WRPP as an example, the author mainly introduced the application and effect of the earthquake wave CT technology. 以大柳树水利枢纽坝基灌浆试验效果检测为工程实例,重点介绍地震波CT技术的应用和效果。
- Compared with classic wavelet technique, the proposed method can adjust not only the low frequency components of earthquake wave, but also the high frequency components. 和传统的小波分析相比，该方法不仅对地震波低频分量进行精确调整，还可对其高频成分实现类似的调整。
- Through feature studies of earthquake wave dynamic of double-eventsequence, the possibility to distinguish foreshocks of second main shock hasbeen proposed in this paper. 本文通过对双震型地震序列的地震波动力学特征的研究，提出了识别双震中第二主震前震的可能性。
- This paper studied amplitued and decay law of earthquake wave, Contribution in reducing vibration and application of frequency in safe criterion of detonate vibration. 本文通过大量分析，认识爆破地震波的振动幅值与频率组成的衰减规律、频率在降震中的作用，及其作为爆破振动的安全判据。
- Taking the dam foundation grouting test effect of the Daliuhe WRPP as an example,the author mainly introduced the application and effect of the earthquake wave CT technology. 以大柳树水利枢纽坝基灌浆试验效果检测为工程实例，重点介绍地震波CT技术的应用和效果。
- The transfer of earthquake wave in ground soil is related to soil characteristic, excitation magnitude, etc.. It is not always amplificatory, but likely to be filter and isolation. 表明地基土层对地震动的影响与场地土特性、地震动大小等有关，不一定是放大作用，也可能起滤波和隔震作用。
- When earthquakes happen, two kinds of earthquake waves spread, a horizontal one and a vertical one. 地震发生的时候会发出横向和纵向两种地震波。
- Factors Affecting Torsional Response of Eccentric System under Bidirectional Earthquake Motions 偏心结构在双向地震作用下扭转反应之影响因素
- Coupling Effect of Bidirectional Earthquake on Multi-storey Structures on Isolated Frictional Base 双向地震耦合作用对基础摩擦隔震结构的影响
- The storm heaved the sea into mountainous waves. 风暴在海面上掀起万丈波涛。
