Anotron
[电] 冷阴极充气整流管
🗣️ 情景例句
A journey of a thousand miles begins with a single step.
千里之行，始于足下。
Truth is the daughter of time.
真理是时间的女儿。
That was a long time ago,wasn't it?
那是好久以前的事了。是吗？