Cathetron
[电]外控式三极汞气整流管
🗣️ 情景例句
I'm going back to my office.
我要回办公室了。
I'd like to sit in the front of the plane.
我要坐在飞机前部
The intellectual, who is working on some abstruse problem, has everything coordinated and organized for the matter in hand.
一个专心钻研某个复杂问题的知识分子，为了搞好手头的研究，要把一切都协调一致，组织周密。