“compound drive drilling”的概念、定义、翻译、参考文献-科学参考

单词	compound drive drilling
释义	compound drive drilling Encyclopedia 工学钻井方法释 compound drive drilling复合驱动钻井钻头的驱动由地面驱动（转盘驱动或顶部驱动）和地下驱动（一般为井下螺杆钻具或涡轮钻具）两部分组成，钻头的转速是两部分驱动转速合成的钻井方法。
随便看	natural moving frame natural necessity natural norm Natural novel natural nuclear reactor natural nucleotide natural nuclide natural number natural number of a logarithm natural number sequence natural numbers object natural object natural object, natural scene natural object photography natural operation natural operator natural optical background natural order natural ordering natural organic compound natural oscillation natural parameter natural parametrization natural park natural partial order

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