“螺杆钻具”的概念、定义、翻译、参考文献-科学参考

单词	螺杆钻具
释义	螺杆钻具 Encyclopedia 理学孔内钻具释 positive displacement motor drill螺杆钻具将钻井循环介质的液压能转化为机械能的容积式孔底动力钻具。简称螺杆钻。
随便看	international ellipsoid international EMF project International Energy Agency International English Language Testing System international entrepreneurial behavior international environmental law international environmental textile label international environmental treaties international environment law International Equestrian Federation International e-Sports Federation International Eurasian Academy of Sciences International Experience Design Committee International Exposition international express mail service International Extreme-UV Hitchhiker International Federation for Information and Documentation International Federation for Systems Research International Federation for the Promotion of Mechanism and Machine Science International Federation for the Theory of Machines and Mechanisms International Federation of Bodybuilders International Federation of Festival Organizations International Federation of Film Archive International Federation of Film Producers Associations International Federation of Freight Forwarders Associations

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。