“孔底动力钻进”的概念、定义、翻译、参考文献-科学参考

单词	孔底动力钻进
释义	孔底动力钻进 Encyclopedia 理学钻探理论释 down hole motor drilling孔底动力钻进利用置于钻孔底部的孔底动力钻具直接驱动钻头破碎岩石的钻进方法。
随便看	principal moment of inertia principal net of a mapping principal net of the flow principal neutral point principal nilpotent orbit principal norm principal normal principal normal complex principal normal form principal normal line principal normal plane principal normal section principal normal surface principal normal vector principal number principal nutation principal object principal offender principal of land laws principal of least dissipation of energy principal open set principal optical axis principal orbit principal orbit type principal order

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。