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顶部驱动钻井装置
释义
顶部驱动钻井装置
Encyclopedia
工学
钻井装备
释
top drive drilling equipment
顶部驱动钻井装置
动力从井架的顶部直接驱动钻具进行旋转钻进,并能完成多种钻井操作的钻井装置。又称顶驱或顶驱装置。
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Lucas circles
Lucas circles radical circle
Lucas correspondence
Lucas correspondence theorem
Lucas Cranach
Lucas critique
Lucas cubic
Luca Signorelli
Lucas inner circle
Lucas inner triangle
Lucas-Lehmer residue
Lucas-Lehmer test
Lucas married couples problem
Lucas n-step number
Lucas number
Lucas paradox
Lucas polynomial
Lucas polynomial sequence
Lucas problem
Lucas pseudoprime
Lucas root theorem
Lucas sequence
Lucas tangents triangle
Lucas theorem
Lucayan National Park
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