“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	gold theragran Gold Trade Project Gold Triangle Belt gold ware from the Tomb of Marquis Yi of the Zeng State gold ware from the Tomb of the Zhongshan King under the Han Dynasty gold wasp Gold-wefted Brocade gold-wefted brocade of the Yuan Dynasty gold-worked gold-woven silk breast protector with plum and phoenix patterns "Gold Yuan" Certificate golf golf ball golf course golf course turf Golfo de Ancud Golfo de California Golfo de Darién Golfo de Fonseca Golfo de Penas golf of Summer Special Olympics golf tourism golf trousers Golgi apparatus golgi apparatus

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。