“孔底动力钻具”的概念、定义、翻译、参考文献-科学参考

单词	孔底动力钻具
释义	孔底动力钻具 Encyclopedia 理学钻具释 downhole motor孔底动力钻具位于钻柱下部，由钻井液（循环介质）或电力驱动，实现回转、冲击碎岩的钻具。
随便看	pencatite Penchihe Pench National Park pencil pencil beam pencil-beam antenna pencil beam survey pencil-beam survey pencil buoy method Pencil Drawing pencil-family pencil in cup appearance pencil interactive pencil of circles pencil of coaxal circles pencil of complexes pencil of confocal conics pencil of conicoids pencil of conics pencil of curves pencil of hyperplanes pencil of lines pencil of matrices pencil of operators pencil of parallel lines

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。