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| surveillance centrale | |||
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Central Monitoring : 20 phrases in 10 subjects |
| Aviation | 3 |
| Communications | 1 |
| Environment | 1 |
| Information technology | 1 |
| Measuring instruments | 1 |
| Microsoft | 1 |
| Name of organization | 1 |
| Telecommunications | 9 |
| Transport | 1 |
| United Nations | 1 |