“casing drilling”的概念、定义、翻译、参考文献-科学参考

单词	casing drilling
释义	casing drilling Encyclopedia 工学套管钻井释 casing drilling套管钻井用套管代替传统钻杆作为钻柱，将顶驱或转盘上的机械动力和泥浆泵的液压动力传递到钻头，套管柱在钻进的同时起到封隔井眼和地层作用的技术。
随便看	hierarchical system of physical regionalization hierarchical system of the church hierarchical task network planning hierarchical tree hierarchical triple system hierarchical universe hierarchical watershed hierarchic subject of decision-making in mega project hierarchies theory of learning hierarchization representation？ hierarchized hierarchy hierarchy of categories hierarchy of church hierarchy of geographical names hierarchy of models hierarchy of needs hierarchy of needs theory hierarchy of sets hierarchy of types hierarchy plus input-process-output hierarchy problem hierarchy structure hierarchy theorem hierarchy theory

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