法国格勒诺布尔大学的米歇尔•布乔(Michel Bouchon)及来自法国、土耳其的地质学者一起对1999年夺走1万7千条生命的土耳其伊兹米特(Izmit)大地震发生前的记录的震动图进行了研究。

Michel Bouchon at the University of Grenoble, France, and a team of French and Turkish geologists studied seismograms recorded before the Izmit earthquake, which killed some 17, 000 people.

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可以利用的记录震源附近运动的地震图很少。

Very few seismograms showing motion near to the source are available.

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振动图是用来记录地面随时间运动并且是地震学家用来研究地震波的基础数据。

Seismograms are recordings of ground motion as a function of time and are the basic data which seismologists use to study the waves generated by earthquakes.

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