Spiratron
旋束管(离心静电聚焦行波管), 径向聚束行波管, 螺旋管
🗣️ 情景例句
We'll call Mrs. Martinelli and tell her to keep looking for us.
我们会打电话给Martinelli太太告诉她继续帮我们物色房子?
I assume you've decided against buying a new car.
我假设你决定不买一辆新汽车。
Whoever comes will be welcomed.
来的人我们都欢迎。