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Dual Control : 26 phrases in 13 subjects |
| Antennas and waveguides | 1 |
| Automated equipment | 1 |
| Aviation | 1 |
| Commerce | 3 |
| Communications | 4 |
| Computer numerical control | 2 |
| Computers | 2 |
| General | 2 |
| International trade | 1 |
| Mechanic engineering | 4 |
| Paragliding | 1 |
| Transport | 3 |
| United Nations | 1 |