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
When does he arrive?
他什么时候到？
Why are you so angry?
你为什么这样生气？
His vanity was hurt by their talking so frankly.
他们坦率的谈话伤害了他的虚荣心。