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
Oh, Grandpa will be so pleased that you're wearing them.
噢 ，戴了它， 祖父一定会非常高兴。
I prefer fishing to swimming.
比起游泳，我更喜欢钓鱼。
One of links in the chain that drives the wheels had snapped.
驱动轮子的链条断了一节。