| 单词 | line powered |
| 释义 | line powered utility circuits, substantial battery packs, and backup diesel generators, the typical analog residential telephone still works even if the lights go out.The telephone companies are said to be the largest power utilities in the world, although that is not the focus of their business. See also UPS. |
| 随便看 |
|
科学参考收录了5291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。