“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	complement control protein complement deficiency disease complement dependent cytotoxicity，CDC complemented complemented lattice complemented modular lattice complemented module complemented space complemented subspace complement element complementer complement event complement graph complement knot complement line complement module complement number complement of a graph complement of a module complement of an element complement of an event complement of a number complement of a relation complement of a set complement of a subgraph

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。