| 单词 | beam tube |
| 释义 | beam tubenoun : a power amplifier vacuum tube in which the flow of electrons is channeled by means of beam-forming plates and similarly spaced control and screen grids |
| 随便看 |
英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。