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根据这些波到达的时间, 地震学家们能够计算出地震离地震仪的距离.
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NPR's Nathan Rott reports seismologists are seeing at least one of them as a warning.
据NPR新闻的纳山·罗特报道，地震学家认为至少有一起地震发出警告。
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The internal constitution of the Earth has been a primary objective of seismologists.
地震学家的主要目标是研究地球的内部构造。
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That's why seismologists have been working so hard to develop methods of earthquake prediction.
这也是地震学家一直致力于大力研发地震预报方法的原因。
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That's why seismologists have been working so hard to develop earthquake to prediction.
那就是为什么地震学家如此辛苦的工作只为了找出能够预测地震的方法。
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Seismologists caution the public that their work is still an inexact science.
地震学家提醒公众，他们的研究仍然无法十分精确。
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