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| ECHO | |||
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| image fantôme; réflexion f | |||
| contrôle par retour de l'information | |||
| écho m | |||
| écho simple | |||
| réponse Q | |||
| flash backs; phénomène de récurrence | |||
| signal d'écho | |||
| German thesaurus | |||
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| ECHO | |||
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| Echo | |||
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ECHO : 39 phrases in 11 subjects |
| Astronomy | 2 |
| Communications | 14 |
| Earth sciences | 5 |
| Electronics | 3 |
| General | 1 |
| Information technology | 2 |
| Medical | 2 |
| Medical appliances | 5 |
| Microsoft | 1 |
| Radiation | 1 |
| Transport | 3 |