 |
| air supply system: 25 phrases in 16 subjects |
| Aerohydrodynamics | 1 |
| Astronautics | 1 |
| Automobiles | 1 |
| Aviation | 1 |
| Cement | 1 |
| Construction | 2 |
| Electronics | 3 |
| General | 1 |
| Laboratory equipment | 1 |
| Military | 1 |
| Mining | 1 |
| Refrigeration | 1 |
| Sakhalin | 1 |
| Security systems | 3 |
| Technology | 5 |
| Ventilation | 1 |