破裂方向效应是由破裂传播和辐射图效应引起的。
The rupture directivity effect is due to rupture propagation and radiation pattern effects.
设计了一个二维脆性玻璃板的破裂模拟实验，以研究脆性介质的破裂传播过程。
A simulation experiment using the fracturing of two-dimensional brittle glass plates is designed to study the propagation process of fracture in a brittle medium.
这意味着本方法可以应用于推断某些历史地震的断层类型、破裂传播速度及破裂传播方向。
This suggests that the present method could be applicable to some historical earthquakes with known seismic intensity distribution to obtain detailed information on the faulting process.
由于P波和S 波以不同但相当恒定的速度传播，它们到达的间隔与到震源或初始破裂点的距离成比例地增加。
Because P and S waves travel at different but fairly constant speeds, the interval between their arrivals increases in proportion to the distance from the earthquake focus, or initial rupture point.
文中讨论了裂纹的形成和传播机制，并阐明了铜管出现应力腐蚀破裂的原因。
The formation and propagation mechanism of the cracks is discus - sed and the cause for the stress corrosion fracture in the brass pipe is elucidated.
前者有分枝断层及微破裂转换；后者有传播褶曲及微弯曲转换。
The former contains branch fault and miCro-break conversion and the latter has propagation fold and micro-winding conversion.
前者有分枝断层及微破裂转换；后者有传播褶曲及微弯曲转换。
The former contains branch fault and miCro-break conversion and the latter has propagation fold and micro-winding conversion.
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