“Culverts in ancient China”的概念、定义、翻译、参考文献-科学参考

单词	Culverts in ancient China
释义	Culverts in ancient China Encyclopedia 理学　　　　古代涵管释 Culverts in ancient China　　　　古代涵管古代又称瓦窦、涵洞，修在塘堰或渠道的堤岸中，用于向农田放水；建于大江大河、湖泊的堤岸中，用于泄水、淤灌等；或建于古城城墙中，用于城市供排水。涵洞可为开敞式，也可设闸门节制。
随便看	primitive cardiovascular system primitive celadon pot primitive cell primitive character primitive class primitive cohomology primitive cohomology class primitive commune primitive commune in Russia primitive commune institution Primitive Commune Ownership primitive commune system primitive complex symplectic manifold primitive concept primitive connective primitive cosmic ray Primitive Culture primitive cycle primitive differential form primitive dispersion set primitive divergent diagram primitive divisor class primitive element primitive equation primitive errors of process system

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