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annual maintenance in ancient water conservancy projects
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annual maintenance in ancient water conservancy projects
Encyclopedia
工学
中国古代水利管理
释
annual maintenance in ancient water conservancy projects
古代水利工程岁修
古人采用当时的技术与材料对水利工程进行每年一次的全面检查、养护和维修的制度。是一种有计划的、定期性的维修制度,以此保障水利工程的可持续运行。
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