利用时间城小地震地震图的方法，研究了震源参数与介质特性的差异。
In this paper, the difference of earthquake source parameters and medium property has been studied, by using small earthquake maps within a time domain.
本文采用地质构造、地震活动图象、震源机制资料综合分析方法，对唐山地震序列主要的构造过程进行研究。
In this paper, the main tectonic process of the Tangshan earthquake sequence was studied by comprehensive analysis of geological structures, seismicity pattern and focal mechanism data.
通过对传感器布置优化分析，绘出传感器布置的一个优化分析结果的震源定位等值线实例图。
Optimal analysis of layout of sensors gives the optimized results of sensors positions presented through an isogram of the source location.
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.
本文在获得三维速度图象的同时，还重新确定了该区的129个地震的震源位置。
While reconstructing the 3-d velocity structure, we have carefully relocated hypo-centers of 129 earthquakes in the region.
本文在获得三维速度图象的同时，还重新确定了该区的129个地震的震源位置。
While reconstructing the 3-d velocity structure, we have carefully relocated hypo-centers of 129 earthquakes in the region.
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