earthquake catalog造句

• Digitalized earthquake catalog in yunnan province
  云南数字化地震编目
• The records we used are mainly from three parts : strong ground motion data before 1992 ' s ; data from scec ( south california earthquake catalog ) ; nsmp ( national strong motion project ) . after we developed the attenuation laws , we analysis the attenuation characteristics for the pga and sa with different damping ratio . here we mainly concentrate on the effect of the distance and the magnitude
  在回归出中小地震的衰减关系后，本文对峰值加速度(水平向与垂向) 、加速度反应谱(阻尼比分别为0 . 005 、 0 . 02 、 0 . 05 、 0 . 1 、 0 . 2 )的衰减特性进行了分析，影响因素主要考虑了震级与距离这两个方面。