Four electrode valve
[电] 四极阀
🧩 词语组成解析
four
[fɔr]
num. 四;四个;第四;
n. 四的;四个一组之物;
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
Hello.
哈喽。
We have some reports to show you for background information.
我们还有一些报告向你介绍背景资料。
the editor was getting impatient, for the magazine would soon go to press.
在此期间，编辑等得不耐烦了，因为杂志马上要付印。