 |
| |||
| signal plate | |||
| photoemissive cathode | |||
| photo-cathode; photoelectric cathode | |||
| photosensitive cathode | |||
| photocathode | |||
|
photocathode : 30 a las frases, 6 temas |
| Americano uso | 2 |
| Ciencias de la tierra | 1 |
| Electrónica | 2 |
| Física nuclear | 10 |
| Irradiación radiactiva | 14 |
| Tecnología de la información | 1 |