| 单词 | bottleneck |
| 释义 | bottleneck [`bäd·ǝl´nek] PETROLEUM ENGINEERING A section of reduced diameter in a drill pipe that is caused by excessive longitudinal strain or a combination of such strain and irregular swaying of the mechanism. |
| 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。