The revised parameter has been adopted so as to maintain definition of distance parameter of seismic ground motion consistent with intensity attenuation relationship as far as possible.
对距离参数进行了修正，使地震动衰减和烈度衰减关系中的距离参数的定义尽可能保持一致。
The seismic ground motion attenuation relationship is an important content in seismic zonation and seismic safety evaluation of engineering sites for key projects.
地震动衰减关系是地震区划和重大工程场地地震安全性评价的重要内容。
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