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trench engineering technology
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trench engineering technology
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理学
沟洫工程技术
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trench engineering technology
沟洫工程技术
关于中国夏商周时期灌溉、排水渠系的记录与总结研究。沟洫系统肇始于夏,发展于商,至周代趋于规范化,在实施井田制的地区逐渐形成纵横交错的农田沟洫体系。
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network planning technique
network plan review technology
network politics
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network program host
network programming
network promotion
network propagation dynamics
network protection
network protocol
network protocol analyzer
network protocol security
network pruning
network psychological warfare
network public
network publications
network public opinion
network public opinion guidance
network public opinion research and judgment
network pyramid sales
network range
network real-name system
network real-time kinematic positioning
network reconnaissance
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