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
Thanks.
谢谢。
That's a pity.
那真可惜。
It had been baked by a college student who had used over 1,000 pounds of flour, 800 pounds of sugar, 200 pounds of fat, and 400 pounds of various other ingredients.
它是由一个大学生烘制的，用去1，000多磅的面粉、800磅食糖、200磅动物脂肪及400磅其他各种原料。