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| image frequency; second-channel frequency | |||
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| video frequency | |||
| image response | |||
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| image frequency in superheterodyne reception | |||
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frequence-image : 35 a las frases, 8 temas |
| Aparatos médicos | 3 |
| Computadores | 2 |
| Comunicaciones | 16 |
| Electrónica | 6 |
| General | 1 |
| Microsoft | 1 |
| Tecnología | 2 |
| Tecnología de la información | 4 |