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
Nice to meet you, Harry.
我也很高兴见到你 Harry。
What time's the next train to Washington?
下一趟去华盛顿的车几点开？
I could not catch your question. Could you repeat it, please?
我没听清楚你们的问题，你能重复一次吗？