“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	cerium permanent magnets CERL cermet CERN cerotegument cerotic acid cerotic acid; cerotinic acid cerotinic acid Cerrado Protected Areas: Chapada dos Veadeiros and Emas National Parks Cerro Catedral Cerro de Las Minas Cerro Tololo Inter-American Observatory Cerro Tres Kandú CERT certain certain event certain factor certain means of literary expression certain multi-objective evaluation model certain phenomenon certain return state Certain Rules Relating to Damage Caused by Foreign Aircraft to Third Parties on the Surface，1952 certainty certainty equivalence principle certainty equivalent

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。