“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	reference electrode reference element reference ellipsoid reference-ellipsoid-centric coordinate system reference epoch reference extractive reference family reference frame reference frame of center of masses reference frequency standard reference frequency synthesizer reference great circle reference group Reference Guide for Books reference input reference interaction site model reference leak reference level reference light reference line reference material reference material (RM) Reference Materials for Printing Movable Type Research Reference Materials for Teaching Chinese Archival History reference materials of geoanalysis

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