Neotron
充气式脉冲发生管
🗣️ 情景例句
I was relieved of my position.
我被撤职了。
Could you drop me off at the airport?
你能载我到机场吗？
Once the oxygen content of the air had risen to 25% it was ready to burn.
一旦氧气在空气中的含量达到25%，它就要燃烧。