“water conservancy projects during the Roman Empire Era”的概念、定义、翻译、参考文献-科学参考

单词	water conservancy projects during the Roman Empire Era
释义	water conservancy projects during the Roman Empire Era Encyclopedia 工学[古代区域水利]释 water conservancy projects during the Roman Empire Era古罗马水利工程古罗马人建造的用于防洪、供水、排水和灌溉的水利工程。
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