 |
| |||
| система газового пожаротушения (Alexander Demidov) | |||
| gaseous system: 32 phrases in 11 subjects |
| Astronautics | 3 |
| Electronics | 2 |
| Energy industry | 9 |
| Firefighting and fire-control systems | 4 |
| Gas processing plants | 1 |
| General | 2 |
| Gyroscopes | 1 |
| Nautical | 4 |
| Sakhalin | 1 |
| Technology | 4 |
| Weapons of mass destruction | 1 |