thermionic relay[电] 热离子继电器;热电子继电器
thermionic voltmeter热离子管伏特计;热离子电压计
thermionic valves热离子真空管;热游离阀;热阴极电子管
Thermionic Losses热游离损失
rectifier thermionic热离子整流器
discharge thermionic热离子放电
thermionic noise热离子噪声
emission thermionic热离子发射
Thermionic tubes热离子管
ADJ（形容词） of, relating to, or operated by electrons emitted from materials at high temperatures 热电子的
a thermionic valve