“井下动力钻具”的概念、定义、翻译、参考文献-科学参考

单词	井下动力钻具
释义	井下动力钻具 Encyclopedia 工学钻井装备释 downhole motor井下动力钻具连接在钻铤与钻头之间，随钻柱一起下入井底，驱动钻头旋转破岩的动力机。又称井下马达。
随便看	analog computer analog computer subsystem analog controlled circuit analog-digital-analog converter analog digital filter transform analog-digital filter transform analog display instrument analog electric hydraulic control system analog electronic camera analog function analog geophone analogical dictionary analogical extension analogical inference Analogical Interpretation analogical learning analogical leveling analogical method analogical reasoning analog indicating instrument technology analog input analogism analogization analog measurement analog measuring instrument

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。