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
But if they don't, I'll adopt her.
如果找不到，我就收养 。
Please give me a hand.
请帮我个忙。
Gifts poured in not only from unknown people, but room baby food and soap manufacturers who wished to advertise their products.
不但素昧平生的人寄来了大量的礼物，而且婴儿食品、婴儿肥皂制造厂商为了替自己产品做广告也寄来了大量的礼物。