“top drive drilling equipment”的概念、定义、翻译、参考文献-科学参考

单词	top drive drilling equipment
释义	top drive drilling equipment 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。
随便看	asymptotically stable set asymptotically stable solution asymptotically stable system asymptotically unbiased asymptotically unbiased estimate asymptotically unbiased test asymptotic analysis asymptotic analysis of laminar flame asymptotic approximation asymptotic approximations asymptotic basis asymptotic behavior asymptotic bias asymptotic branch asymptotic branch giant asymptotic center asymptotic circle asymptotic completeness asymptotic concentration asymptotic condition asymptotic cone asymptotic convergence asymptotic coordinate asymptotic covariance asymptotic curvature

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