thermoion

例句：

1. 1. Thermionic valves are used in a variety of electronic devices.
   热离子阀用于各种电子装置。
2. 2. Thermionic emission is a phenomenon that occurs when an atom or molecule gains energy from the electric field.
   热离发射是一种现象，当原子或分子从电场中获取能量时会发生。
3. 3.In thermoionic materials, electrons are attracted to the positively charged atoms and ions, creating a conductive path.
   在热离材料中，电子被吸引到带正电荷的原子和离子上，形成导电路径。