Compressive faults occurred after principal earthquake with slow variation in propagation and release of stress wave, this might lead to higher after shock intensity and longer duration.
挤压型逆冲断层地震在主震之后，应力传播和释放过程比较缓慢，可能导致余震强度较大，持续时间较长。
In this paper, using principal component method 115 strong-motion earthquake records are analysed.
本文运用主成份法对115个强地震运动资料进行了分析。
This paper describes the transducer of the resistance strain gauge, the formulas for its principal stress and the application of the earthquake prediction.
本文介绍了电阻应变片传感器及其主应力公式和在地震予报中的应用。
The method of determining earthquake input principal direction are studied, which is used for seismic analysis of irregular bridges.
讨论了不规则桥梁地震反应分析中地震动输入主方向的问题。
Decreasing of the minimal horizontal principal stress, or more, may he responsible for a trigger of the earthquake associated with a change in stresses.
应力改变触发地震的机制，主要是由于最小水平主应力的减小，或两个水平主应力同时减小。
Rainfall and earthquake, both of which are of great uncertainty, are two of the most principal factors for landslides.
降雨和地震是滑坡发生的主要诱发因素，且二者均具有很大的不确定性。
In 1980, the author predicted some coming great earthquakes in the world by using the symmetrical migration pattern of earthquake. The prediction consists of 12 principal items and 5 additional items.
1980年，笔者应用地震对称迁移图象预测了全球大地震，其中包括12项主要预测意见和5项补充预测意见。
It is indicated that some modes corresponding to the maximum of earthquake force are principal, but others produced by steel trusses are local because of the weakness of theirs joints.
结果表明，转换钢桁架产生局部振型，形成结构薄弱环节，结构主振周期对应着地震力贡献最大的振型；
Earthquake input pattern is a principal focus in the research on earthquake-resistance of engineering structures.
地震输入问题一直是工程结构抗震研究关注的焦点。
The axes of principal stress rotated before earthquake.
震前主应力轴的旋转。
The axes of principal stress rotated before earthquake.
震前主应力轴的旋转。
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