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
I'll have no problem.
我不会有问题。
They who cannot do as they would,must do as they can.
不能如愿而行，也须尽力而为。
I'll check the rates and call you back.
我来查一下价目再给你回电。