“钻头选型”的概念、定义、翻译、参考文献-科学参考

单词	钻头选型
释义	钻头选型 Encyclopedia 工学钻井装备释 bit selection钻头选型以快速、安全、经济钻井为目标，根据井眼尺寸、地层岩性和钻井参数等确定钻头类型的过程。
随便看	many-stage many-to-many function many-to-many mapping many-to-one many-to-one correspondence many-to-one function many valley model many-valued many-valued algebra many-valued analytic function many-valued composition law many-valued disjunction many-valued function many-valued inverse function many valued logic many-valued logic many-valued logic approach to paradox solution many-valued mapping many-valuedness many-valued proposition logic many-valued singular point many-worlds interpretation Manzanillo Manzini Manzini Region

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。