“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	surface concentration surface condenser surface conductance surface contamination monitor surface convex toward one side surface coordinate surface course surface cover classification surface crack surface critical field surface crystallography surface curl surface current surface current density surface dangling bond energy level surface dangling bond state surface decorated plywood with impregnated paper surface decorated wood-based panels with paper impregnated thermosetting surface decoration of wood-based panel surface defect surface degree surface density surface density method surface density of charge surface density of states

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。