“开钻”的概念、定义、翻译、参考文献-科学参考

单词	开钻
释义	开钻 Encyclopedia 工学钻前工程释 spud in开钻下入导管或各层套管后，第一只钻头开始破岩形成井眼的井下作业。又称开始钻进。
随便看	conormal category conormal derivative conormal image conormal operator conormal sheaf conormal sphere bundle conormal to a curve conormal to a surface Conor McPherson conoscope conoscopic conoscopy Conpernik conplane Conquer the World's Highest Peak Conquest in the South and Battles in the North Conquest of Central Asia by Alexander Ⅲ the Great Conquest of the Desert Conrad Aiken Conrad Gesner Conrad Witz conrod conrotatory consanguine family consanguine marriage

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。