请输入您要查询的字词:
单词
阀式连续循环钻井系统
释义
阀式连续循环钻井系统
Encyclopedia
工学
控压钻井
释
continuous circulation valve—CCV
阀式连续循环钻井系统
地面控制系统与接在钻杆上的连续循环阀联合作用,实现在接单根期间钻井液循环通道的切换,进而保持井下钻井液连续循环的特殊钻井作业设备组合。
随便看
unblemished surface
unblocked bond
unblocking
unbonded flexible pipe
unbonded prestressed concrete structure
unbounded
unbounded curve
unbounded domain
unbounded function
unbounded interval
unbounded lag
unbounded linear operator
unboundedness
unbounded operator
unbounded quantifier
unbounded reward model
unbounded search operator
unbounded sequence
unbounded set
unbounded solution
unbounded space
unbounded spectral operator
unbounded subset
unbounded surface
unbounded variation
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。
Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号
更新时间:2026/2/2 12:51:17