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| photocathode relative spectral sensitivity (d'une photocathode) | |||
| relative spectral sensitivity | |||
| relative spectral sensitivity (of a photocathode, d'une photocathode) | |||
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| relative spectral responsivity | |||
| sensibilité spectrale relative: 3 phrases in 3 subjects |
| Electronics | 1 |
| Technology | 1 |
| Vacuum tubes | 1 |