在德黑兰感觉到了地震的震波。
地震产生两种类型的地震波。
目的是比较体外震波碎石术（ESWL）与大力钳碎石术治疗膀胱结石的疗效。
The objective is to compare the efficienty of bladder stone by extracorporeal shockwave lithotripsy (ESWL) and energetically lithotrite.
这次地震波及周围几个城市。
震波监测是我们获知地震发生的最快信息源。
Seismic waves are the fastest way to get information out from the earthquake.
孔隙率和温度有时也能影响地震波速。
Seismic velocity can occasionally be affected by porosity and temperature .
孔隙率和温度有时也能影响地震波速。
Seismic velocity can occasionally be affected by porosity and temperature.
布莱恩·希罗：水下地震发生以后，震波会扩散出去。
The underwater earthquake happens and the seismic waves spread out.
重点：地震波和震级。
问题18地震波中破坏力最强的波形是什么？
Question 18. What is the most destructive type of seismic wave?
通过研究地震波所获得的知识已应用于各种领域。
Knowledge gained from studying earthquake waves has been applied in various fields.
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.
地震波衰减性质的研究是地震学研究的重要课题。
The study of seismic attenuation property is a major subject in seismology.
这也是海底的震波造成的(容易被误解成潮汐波)。
These are also known as seismic sea waves (mistakenly called "tidal waves").
地震波是通过地表传播的波体，通常是由地壳震动或爆炸引起的。
Seismic waves are waves that travel through the Earth, most often as the result of a tectonic earthquake, sometimes from an explosion.
随着爆炸深度的增加，转化为空中爆震波的能量便减少。
As the depth of burst increases the amount of energy going into the air blast wave decreases.
科学家根据地震波的强度和持续时间把地震强度分为了不同的等级。
Scientists assign a magnitude rating to earthquakes based on the strength and duration of their seismic waves.
总的说来，在受到强烈加速震波冲击时，混凝土大坝表现是很好的。
In general, it can be concluded that concrete DAMS have performed very well when subjected to high intensity accelerations.
藏伯格称，常规地震仪采用电路板记录重物受地震波影响的振动情况。
Zumberge said a conventional seismometer records how its mass is displaced by these waves of seismic energy with electric circuit boards.
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.
其一，任何由日本传至智利海岸的地震波都可能在地面震动中起一点作用。
For one, any seismic waves that did make their way from Japan to the Chilean coast could play a slight role in ground-shaking.
它们能直接察觉到地震波，或是感知到地倾斜的变化（常在地震数分钟前发生）。
They could detect seismicwaves directly or ground tilt (which can occur in the minutes before a quake).
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.
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（地震仪）正是采用了这中思路。
That sounds a silly suggestion, but that was precisely the idea adopted in some of the early instruments (seismometers) for recording earthquake waves.
1889年4月17日在波茨坦对远震的成功记录标志着通过地震波方式研究地球结构的开始。
The first recording in Potsdam of such teleseisms on April 17, 1889 marks the birth of the study of the structure of the Earth by means of seismic waves ( see blog January 14, 2009).
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.
地震波沿地球南北两极传播比沿东西方向传播的要快。现在，科学家们认为已找到了这一问题的原因所在。
Seismic waves traveling between Earth’s poles move faster than those moving east-west, and now scientists think they may know why.
智利断层活动产生的地震波环绕地球数圈之后又袭击了加利福尼亚，触发了加利福尼亚中部的微震。
The seismic waves released during the Chilean fault movement traveled around the world several times and triggered microquakes in central California.
智利断层活动产生的地震波环绕地球数圈之后又袭击了加利福尼亚，触发了加利福尼亚中部的微震。
The seismic waves released during the Chilean fault movement traveled around the world several times and triggered microquakes in central California.
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