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复合驱动钻井
释义
复合驱动钻井
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。
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Ahura Mazda
ah uruq
A. Hurwitz
A. Hurwitz (1859—1919)
AHVC
A. H. Wilson
a hypothesis that the initials niang and ri belong to the ni in old Chinese
a hypothesis that there are complex consonants in old Chinese
a hypothesis that there are no labiodental in old Chinese
a hypothesis that there are no laminals in old Chinese
a hypothesis that there are voiceless nasal and lateral in old Chinese
a hypothesis that there is no departing tone category in old Chinese
a hypothesis that the yu initial at the fourth division belongs to the ding initial in old Chinese
a hypothesis that the yu initial at the third division belongs to the xia initial in old Chinese
a hypothesis that tonal distinctions are merged in old Chinese verses
A. H. 威尔逊
AI
AIAA
AIB
AIBD
Aibi Hu Wetland National Nature Reserve
AIBN
AIC
AICCM
AIC criterion
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