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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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Rara Mendut
R. A. Rankin
R. A. Rankin (1915—2001)
rare
rare and endangered marine species
rare and endangered plants
rare and relic plant of China
rare and wonderful view of Xiao-Xiang
Rare Books Preservation Society
rare earth alloy
rare earth and transition metal doped solid state laser
rare-earth and transition metal doped solid-state laser
rare-earth-based AB5-type hydrogen storage alloy
rare earth bromide
rare earth carbonate
rare earth catalytic material
rare earth centrifugal extractio separation and purification
rare-earth chelate
rare earth chloride
rare earth chloride lithium thermal reduction
rare earth cluster compound
rare earth complexes materials
rare earth compounds
rare-earth-doped glass
rare earth element
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