n. inundation
vt. flood
The flood disasters of the Han Dynasty had its characteristics .
两汉时期的水灾虽然次数不多,但有鲜明的特点。
参考来源 - 两汉水灾及政府治河、赈恤措施As the most frequent disasters in Chinese history, flood and drought which had a close relationship with climate change have been studied by many researchers for a long time.
水灾、旱灾作为中国历史上最频繁发生的自然灾害,它们的成灾原因和发展趋势跟气候变化密切相关,我国已有大量的学者对水、旱灾害做过细致的研究。
参考来源 - 历史时期中国蝗灾记录特征及其环境意义集成研究·2,447,543篇论文数据,部分数据来源于NoteExpress
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