单词 | elevator rod |
释义 | elevator rod [`el·ǝ´vād·ǝr ´räd] PETROLEUM ENGINEERING A steel block fitted with an opening and latching device to permit insertion of a sucker rod, and provided with two long links to suspend from the elevator clamp when equipping a well with sucker rods for pumping. |
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。