“不提钻换钻头”的概念、定义、翻译、参考文献-科学参考

单词	不提钻换钻头
释义	不提钻换钻头 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	American University of Beirut American vegetation classification system American Veterinary Medical Association American Wire Gauge America race Americas Chinese Calligrapher Association America's Cup America's Museums: The Belmont Report America's National Radio Astronomy Observatory americium americium-241 americium-243 americium-beryllium neutron source americium/curium separation americium oxide Americo Vespucci Amerigo Vespucci AMERIPOL A Mermaid of the East Sea amerospore Amery group Amery Ice Shelf amesdial Ames Research Center A Message to Taiwan Compatriots

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。