Barratron
非稳定波型磁控管(用以产生噪音干扰)
🗣️ 情景例句
Please cash this check.
请兑现这张支票。
I don't know where I've seen him before.
我不晓得在哪儿见过他。
Do you want to have lunch with us?
你跟我们一起吃午饭好吗？