阴电子 [物] negatron ; [物] negative electron ; negatono

热阴极电子管 [电子] thermionic valve ; thermionic tube ; hot-cathode tube thermionic tube

电子枪阴极 cathode of electron gun ; gun cathode

冷阴极电子管 cold cathode lamp ; cold cathode tube

热电子阴极 thermionic cathode

阴极电子示波器 cathode-ray oscilloscope

热阴极电子射线管 coolidge tube

冷阴板电子管 cold cathode tube

冷阴极电子枪 cold-cathode gun

光电子冷阴极 optoelectronic cold cathode