Thermionic valve
热离子管，热阴极电子管
📖 牛津释义
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.
🧩 词语组成解析
a. 热离子的\\n[电] 热离
valve
[vælv]
n. 阀;真空管;（管乐器的）活栓;（心脏的）瓣膜;
vt. 装阀于;以活门调节;
🗣️ 情景例句
He jumps from one job to another.
他经常换工作。
What's your favorite pastime?
你最喜欢的消遣是什么？
That sounds very interesting! I'll buy some frozen peas at the supermarket on my way home.
听起来很有趣！我回家时在超级市场买些冻豌豆。