“郑国渠首遗址”的概念、定义、翻译、参考文献-科学参考

单词	郑国渠首遗址
释义	郑国渠首遗址 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	manifold of constant curvature manifold of flags manifold of groups manifold of Kähler type manifold of lines manifold of mappings manifold of metrics manifold of negative curvature manifold of positive curvature manifold of pre-assigned curvature manifold of singularity manifold of solutions manifold of spheres manifold of support manifold of surfaces manifold orientation manifold structure manifold tangent vector manifold topology manifold with a handle manifold with boundary manifold with connection manifold without boundary Manila Bay Manila Cathedral

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