“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	changshan Xian Changshan Yinhao tea Changsha prefecture Changsha Shi Changsha Tanci Changsha Tongguan Kiln Museum Changsha Xian Changsha Xiangju Opera Conservation and Inheritance Center Changshi Changshou Hu Changshou National Forest Park Changshou Qu Changshoushan National Forest Park Chang Shu Changshu City Changshu Economic and Technological Development Zone Chang Shuhong Chang Shun Changshun Xian Changshu Shi Chang Shutian Chang-style Boxing Chang Sun Yung Alice Chang Sun-Yung Alice Chang Sun-Yung Alice (1948—)

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。