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转盘钻井
释义
转盘钻井
Encyclopedia
工学
钻井方法
释
rotary drilling
转盘钻井
在钻台的井口处装有转盘,转盘中心旋转部分有方孔,钻柱最上端的方钻杆穿过该方孔,转盘的转动可以驱动方钻杆转动,带动其下端连接的钻柱转动,从而驱动钻头转动破岩,或从事其他需要井下工具旋转的钻井方法。
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coordination number of hydration
coordination number of surface atom
coordination-optimization of procedure's relations in the manufacturing process of steel plant
coordination polyhedron
coordination polymer
coordination polymerization
coordination polymers
coordination problem
coordination reaction
coordination shell
coordination sphere
coordination strategy
coordination titration
coordinative isomerism
coordinative isomerism; coordination isomerism
coordinatively unsaturated complex
coordinatization
coordinatizing skew field
coordinatograph
coordinatometer
coordinator
cooscillating tides
COP
copalic acid
Copan Ruinas
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