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
Before we go to the gallery,
在我们去画廊之前
Suspicion is the poison of true friendship.
猜疑伤害莫逆之交。
I have had so many falls that I am black and blue all over.
我摔了好几跤，全身又青又紫。