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

单词	sluice and culvert in ancient China
释义	sluice and culvert in ancient China Encyclopedia 工学中国水利科学技术史释 sluice and culvert in ancient China中国古代闸涵古代水闸。又称水门、斗门、陡门、牐或碶，是建在河床或河湖岸边用闸门控制水位、取水或泄水的建筑物。古代涵洞，又称水函、水窦，是埋在填土（主要是堤防或堤岸）下面的过水建筑物。
随便看	twin plane re-entrant edge twin points twin prime cluster twin prime conjecture twin prime numbers twin primes twin primes constant twin probe twin Pythagorean triple twin quasar twin radiosonde twin roller rapid quenching twin-roll strip casting and rolling twins twin screw compressor Twin Sisters twin-sorus ferns twins paradox twins problem twin study twinting an rubbing like plueking the string twin transistor random access memory twin transistor random access memory, TTRAM twin triode twirl

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