“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	protection of cultivated land protection of dialects protection of discharged prisoner protection of drug trademark protection of electronic equipment from environmental factor protection of electronic equipment from shock and vibration protection of financial consumer rights and interests protection of fisheries spwaning ground protection of fishery organisms feeding grounds protection of ground buildings and structures protection of groundwater quality protection of groundwater quantity protection of intellectual property rights protection of juvenile protection of land rights protection of life protection of marriage and family protection of new varieties of plants protection of overvoltage protection of patent protection of privacy protection of steel structure protection of teacher's rights and interests protection of timber structure protection of wage claim

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