“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	essential space essential spectrum essential sphere essential state Essentials to Oral Diseases essential strategy essential submodule essential subsequence essential superior limit essential support essential supremum essential surface essential thrombocythemia essential torus essential trace element essential tremor essential undecidability essential valuation essential value essential variable Essential Writings on Calligraphy essential zero Essequibo River ess.inf ess.sup

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。