“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	polynomial triangle center polynomial valuation polynomial-valued polynomial vector field polynomial without affect polynomial without constant term polynorbornene polynosic polynuclear polynuclear coordination compound polynuclear metal complex polynucleate polynucleotidase polynucleotide polynucleotide phosphorylase poly (N-vinyl carbazole) poly (Nvinylimidazole) poly (N-vinyl pyrrolidone) polyoctene polyol polyolefin-alloying in reactor polyolefine fiber polyolefin production process control systems polyolefins polyolefin thermoplastic elastomer

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。