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| video system | |||
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système vidéo : 21 phrases in 10 subjects |
| Aviation | 3 |
| Communications | 9 |
| Earth sciences | 1 |
| Education | 1 |
| General | 2 |
| Health care | 1 |
| Information technology | 1 |
| Nuclear and fusion power | 1 |
| Sound recording | 1 |
| Telecommunications | 1 |
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