单词 | anchor packer |
释义 | anchor packer [`aŋ·kǝr ´pak·ǝr] PETROLEUM ENGINEERING A device used in oil wells to seal the annular space between the tubing and its surrounding casing to help control the oil-producing gas lift. |
随便看 |
|
科学参考收录了103327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。