“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	Fraser Island Fraser River Fraser spiral Frasnian-Famennian boundary event Frasnian-Famennian mass extinction frass fraternal twins Fraternité arc F-ratio F-ratio distribution fratricidal effect of nuclear weapons Frattini Frattini extension Frattini factor group Frattini subalgebra Frattini subgroup fraud by impersonatinglaw enforcement officials fraud of counterfeiting customer service to refund customers fraud of false shopping fraud of recommending false stocks fraud trust Fraunhafer approximation Fraunhofer Fraunhofer Application Center Fraunhofer approximation

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