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.
其结果说明，在历史地震资料比较丰富的地区，可以利用场地影响烈度的统计特性来编制具有概率含义的地震烈度区划图。
These results show that statistic characteristics of historical earthquakes can be used to seismic zonation with probabilistic means in the region where historical earthquake data is available.
地震烈度包络线通常用地面调查宏观地震影响和破坏现象来划分。
Earthquake isoseismal is usually determined based on the macroscopic earthquake affection and damages observed in the field.
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