“replacing bit without lifting drills”的概念、定义、翻译、参考文献-科学参考

单词	replacing bit without lifting drills
释义	replacing bit without lifting drills Encyclopedia 理学钻进工艺释 replacing bit without lifting drills不提钻换钻头绳索取心钻进过程中，在不起下钻的情况下，将孔底旧钻头单独或随内管总成一起打捞至地面，并将新钻头单独或随内管总成一起下入孔底进行钻进的作业。
随便看	parabolic quadratic surface parabolic radio telescope parabolic ray parabolic reflector parabolic refractive index optical fiber parabolic region parabolic regression parabolic Riemann surface parabolic ring cyclide parabolic rotation parabolic rule parabolic sector parabolic segment parabolic sheaf parabolic simply connected domain parabolic space parabolic spindle cyclide parabolic spiral parabolic subalgebra parabolic subgroup parabolic substitution parabolic surface parabolic system parabolic system of differential equations parabolic throat flume

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。