“Headwork of Zhengguo Canal”的概念、定义、翻译、参考文献-科学参考

单词	Headwork of Zhengguo Canal
释义	Headwork of Zhengguo Canal Encyclopedia 历史学其他遗址释 Headwork of Zhengguo Canal郑国渠首遗址中国战国时期韩国水工郑国于秦王政元年（公元前246）主持修建的引泾灌溉工程郑国渠的渠首工程遗址。
随便看	ecological specialization ecological species ecological sports ecological stoichiometry ecological strategy theory ecological stress ecological study ecological succession Ecological suitability ecological suitability ecological suitability assessment ecological system ecological systems theory ecological tea gardens ecological theology ecological theory of administration ecological threshold ecological town ecological transition ecological treatment model of rural domestic sewage ecological trend study ecological type ecological unit ecological validity ecological value

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