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发现了大震前地震活动性的迁移。
Migration of the seismic activity is found before a big event.
youdao
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地震目录是研究地震活动性的基本资料。
Earthquake catalogs provide basic data set for the study of seismicity.
youdao
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地震目录是研究地震活动性的基本资料。
Earthquake catalogs provide basic data set for the study of seismicity.
youdao