Valve voltmeter
[电] 电子管电压表
🧩 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;
n. 伏特计\\n[化] 伏特计
🗣️ 情景例句
sacrifices have to be made by one partner from time to time.
总要有一方必须不时做些牺牲。
Yes,he is.
是的，他是。
It's the library's. Please be more careful from now on!
“是图书馆的书。从现在起请你倍加小心！”