“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	covariant differential operator covariant differentiation covariant divergence covariant exterior differential covariant field covariant formulation of Lorentz condition covariant formulation of Maxwell equations covariant formulation of Maxwell equations in media covariant formulation of the charge conservation covariant functor covariant index covariantly constant field covariantly constant spinors covariant mapping covariant morphism functor covariant of a group covariant of a tensor covariant order covariant principle covariant quantization covariant set covariant spinor covariant tangent bundle covariant tensor covariant tensor algebra

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