Kenetron
大型热阴极二极电子管(用于工业整流和 X-射线设备), 高压二极管
🗣️ 情景例句
Hi, Tom, this is Mary.
嗨，汤姆，我是玛丽。
I'm sorry. You're right. I should have asked.
对不起。你说得对，我本该先问一声的。
The bull was busy with the matador at the time,
当时那公牛正忙于对付斗牛士，