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
Hey, Xiao Lu, what's up?
嘿，小陆，你好啊？
He received full credit for his studies at a previous school.
他在一所先前的学校取得了所有课程的学分。
Good. But we need some more. Uncle Wang is coming to supper.
好的。但我还要更多点。王伯伯今天来吃晚饭。