 |
| |||
| air pollution monitoring (Alexander Demidov); gas hazard monitoring (Alexander Demidov) | |||
| smoke detection (Alexander Demidov) | |||
| gas testing (twinkie) | |||
| контроль загазованности: 9 phrases in 4 subjects |
| Firefighting and fire-control systems | 2 |
| Gas processing plants | 1 |
| General | 5 |
| Weapons of mass destruction | 1 |