 |
| |||
| противопожарное водоснабжение | |||
| fire-fighting water supply: 5 phrases in 5 subjects |
| Architecture | 1 |
| Nuclear and fusion power | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Security systems | 1 |
|
| |||
| противопожарное водоснабжение | |||
| fire-fighting water supply: 5 phrases in 5 subjects |
| Architecture | 1 |
| Nuclear and fusion power | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Security systems | 1 |