“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	modern opera education(AD1840-1949) Modern Painters Modern Peasant Movement in Japan Modern Peking Opera Gala modern pentathlon modern peoples modern period Modern Photo Salon modern physics Modern Poetry Modern Poetry sect modern precious metals industry in China modern property system Modern Prose modern prose Modern Publications Modern Publishing Modern Publishing House Modern Publishing: Theories and Practices modern railway architecture modern rare earth metals industry in China Modern Republicanism Modern Review modern rose modern scheduling

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。