Valve amplifier
[计] 电子管放大器
🧩 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
At six you're meeting, Mr. Ozawa.
六点钟 ，要会见Ozawa先生。
Reading makes a full man.
读书长见识。
It's very hot. It's summer in Australia now!
很热。澳大利亚现在正值夏天！