“顶部驱动钻井装置”的概念、定义、翻译、参考文献-科学参考

单词	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。
随便看	least concerned least core least covering least deficient number least developed countries least divisor least element least favorable distribution least favorable prior distribution least fixed point least group congruence least harmonic majorant least harmonic majorant function least horseshoe bat least ideal least integer least iteration method least majorant least-mean-square least mean squared error prediction least-mean-square, LMS least median of squares least nonnegative residue least number operator least number principle

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。