 |
|
pulse jet : 34 phrases in 15 subjects |
| Aerohydrodynamics | 2 |
| Air defense | 1 |
| Astronautics | 3 |
| Aviation | 4 |
| Construction | 2 |
| Energy industry | 6 |
| Geophysics | 1 |
| Gyroscopes | 1 |
| Mass media | 1 |
| Military | 1 |
| Missiles | 1 |
| Natural resourses and wildlife conservation | 1 |
| Security systems | 1 |
| Space | 2 |
| Technology | 7 |