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塔式钻具
释义
塔式钻具
Encyclopedia
工学
钻井装备
释
tower assembly
塔式钻具
由下大上小的几段不同尺寸钻铤组成的钻具组合。利用近钻头端大尺寸钻铤的钟摆力进行纠斜。
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cyclic stress
cyclic subclass
cyclic subgroup
cyclic sub module
cyclic sub-module
cyclic subspace
cyclic succession
cyclic sum
cyclic surface
cyclic surgery theorem
cyclic symmetry
cyclic system
cyclic tag system
cyclic theory
cyclic tower
cyclic transformation
cyclic transformation group
cyclic transition
cyclic triple
cyclic unitary representation
cyclic universe
cyclic universe model
cyclic variable
cyclic variable star
cyclic vector
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