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
What are you getting at?
你想说明什么？
Will you please pick up your clothes from the floor?
能请你把地板上的衣服捡起来吗？
Sure. See you tomorrow. Goodbye!
当然。明天见。再见！