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题目名称·作者刊期页数发刊词········································································……本刊编辑部111920年海原特大地震的孕育特征·······……,·……兰州地震研究所
Title of the title · author periodical page number published article ···················································································· ·························································································································································· ...... ·· ......, · ... Lanzhou Institute of Seismology