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canal line planning in ancient China
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canal line planning in ancient China
Encyclopedia
理学
古代渠线规划
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canal line planning in ancient China
古代渠线规划
中国古代关于灌溉渠系和运河渠线布置、走向、路径、高程、底坡、断面尺寸等主要技术指标及原则的总体设计筹划。
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