Thermionic valves
[医] 热离子管, 热电管(热阴极整流管)
🧩 词语组成解析
a. 热离子的\\n[电] 热离
n. 阀门；真空管；瓣膜（valve的复数）
🗣️ 情景例句
How would you like your steak done?
您的牛排想要几成熟？
When I had a rest, what were you doing?
当我休息时，你在做什么？
I'm enjoying this. Where exactly are we going?
我喜欢这次旅行。我们到底要去哪里？