 |
|
tracking unit : 61 phrases in 14 subjects |
| Air defense | 5 |
| Astronautics | 7 |
| Astronomy | 2 |
| Aviation | 1 |
| Energy industry | 1 |
| International Monetary Fund | 1 |
| Military | 29 |
| Missiles | 2 |
| Name of organization | 1 |
| Nanotechnology | 1 |
| Nautical | 1 |
| Oil and gas | 1 |
| Space | 3 |
| Technology | 6 |