研究内容主要包括地震烈度衰减关系和基岩地震动衰减关系。

And then the seismic intensity attenuation relations along major axis, minor axis and mean axis are established separately.

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为了对比分析衰减关系的影响，编图中也采用了借助误差向后传播算法建立的地震烈度衰减关系。

For comparing and analyzing the influence of attenuation relationship, the attenuation relationship of earthquake intensity created by the error back propagation approach was adopted in mapping.

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