“卓筒井”的概念、定义、翻译、参考文献-科学参考

单词	卓筒井
释义	卓筒井 Encyclopedia 理学中国古代钻探释 zhuotong well卓筒井井壁由多根凿通节隔的楠竹连接而成的小直径直立筒井。
随便看	involucre involucrellum involucret involuntary attention involuntary client involuntary commitment and treatment involuntary movement involuntary resettlement involuntomotory involute involute conical gear involute cylindrical gear drive involute cylindrical gear reducer involute helicoid involute of a circle involute of a curve involute of evolute involute planetary reducer with small difference between the numbers of teeth involution involution algebra involutional system involution axioms involution condition involution curve involution form

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