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
Is this your best price?
这是你们最优惠的价格吗？
East or west,home is best.
东也好，西也好，还是家中最好；金窝银窝，不如家里的草窝。
He's over there. He's cleaning the car.
他在那边，在洗车。