 |
| |||
| communication system | |||
| communication,moyen de: 38 phrases in 13 subjects |
| Aviation | 3 |
| Communications | 12 |
| Economy | 2 |
| Environment | 1 |
| General | 3 |
| Human rights activism | 3 |
| Medical appliances | 2 |
| Name of organization | 1 |
| Patents | 1 |
| Politics | 2 |
| Research and development | 1 |
| Transport | 5 |
| United Nations | 2 |