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 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.
构造断裂及破碎会加速孔隙水的衰减，使孔隙级水在衰减曲线上的比例减少，裂隙级水的比例增大。
Faults and fractures will accelerate the recession of pore water, and make the pore water proportion reduce and the fissure water proportion increase in the recession curve.
结果表明：开孔泡沫铝具有良好的冲击衰减性能，使冲击波压力在其中呈指数关系衰减，而波速则随距离呈线性关系衰减。
The results show that, open-cellular al foams have a good shock weakening property, where the shock compressive stress weakens exponentially and the wave velocity weakens linearly with the distance.
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