Sentron
防阴极回轰式磁控管(短波电子管), 防阴极反加热式磁控管A-type sentron A型仙台放电管
🗣️ 情景例句
And to Robbie and the Stewart family
并且感谢Robbie和Stewart全家
What did the doctor say?
医生怎么说？
No wonder people say that computers are taking over the world.
难怪有人说电子计算机正渐渐接管世界。