| 单词 | thermionic valve |
| 释义 | thermionic valve (US ,thermionic `tube), vacuumtube in which a flow of electrons is emitted by heated electrodes, used in the receiving of radio signals, etc 热离子管. |
英汉双解词典包含38652条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。
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