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地震产生两种类型的地震波。 Earthquakes produce two types of seismic waves. | ||
有两种主要的地震波：体波和面波。 There are two chief kinds of seismic waves: body waves and surface waves. | ||
通古斯爆炸包含了地震波和次声扰乱，被世界各地记录下来。 The Tunguska event included seismic waves and infrasonic disturbances that were recorded around the world. | ||
当地震发生的时候，地震波会通过岩石从数百里外传达到地表引起振动。 When this stress is released quickly, it sends massive vibrations, called seismic waves, often hundreds of miles through the rock and up to the surface. | ||
几秒钟之后，圣哈辛托(SanJacinto)一所高中的科学课堂上的师生将会记录地震波。 Seconds later, a high school science classroom in San Jacinto would record the waves. | ||
但是，在松软的土层上，长周期地震波的震动会被放大，可能使摩天大楼的摇摆更加剧烈。 But on soft soils, vibrations from long-period seismic waves are amplified, possibly exacerbating the swaying of skyscrapers. | ||
在资料的上限频率不高时，介质的黏滞性将导致地震波发生一个常数的相位延迟。 The viscoelasticity of a medium makes seismic wave have a constant phase delay when u… | ||
这里是一个图表，展示的是1960年在智利的地震波的影响下的夏威夷的希洛，浪高随时间的变化。 Here's a great chart showing the timing of wave impact in Hilo, Hawaii after a Chilean earthquake in 1960. | ||
