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
It is not as difficult as it looks.
这并不像看起来那丢难。
No problem.
没问题。
There would be pictures in magazines and newspapers, showing crowds of peope with their cameras and noisy, excited talk.
报纸和杂志将刊登出图片，报纸和杂志将刊登出图片，展示那些带着照相机熙熙攘攘蜂涌而至的人群。