Stabilotron
厘米波功率振荡管, 稳频管
🗣️ 情景例句
It's still raining. I want to play tennis.
仍然在下雨。我想打网球。
A man can do no more than he can.
凡事只能量力而行。
I was proud that we had come across something that was completely unknown and valuable and,
让我感到自豪的是，我们在无意中发现了不为世人所知的、有价值的东西，