“正循环钻进”的概念、定义、翻译、参考文献-科学参考

单词	正循环钻进
释义	正循环钻进 Encyclopedia 理学钻进方法释 directional circulation drilling正循环钻进冲洗介质经钻杆内腔流向孔底，将钻头切削破碎下来的钻渣岩屑，经钻杆与孔壁的环状空间携带至地面的钻探循环方式。
随便看	exhibit shipping exhibits loaning exhumation exhumation mechanism Exiang Ji exicographical equivalent Exif Information Exif信息 EXIF信息检验 Exif文件 exile Exiled Persons in Beginning of Qing Dynasty EXIMBANK exine exine-held protein Exi Shandi E'xi Shengtaiwenhua Lvyouquan exist existence Existence and Existents existence and non-existence existence and non-existence grow out of each other existence and uniqueness theorem existence axiom existence condition

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。