Valve tube
[电] 阀管
🧩 词语组成解析
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
During our stay in London, we visited Buckingham Place.
我们在伦敦逗留期间参观了白金汉宫。
I often watch TV at night.
我常常在晚上看电视。
She was intended to play a leading role in the growing might of Sweden.
目的就是要在不断增长的瑞典势力中起主导作用。