 |
| |||
| propagation test | |||
| испытание на распространение: 3 phrases in 3 subjects |
| Firefighting and fire-control systems | 1 |
| Polymers | 1 |
| Technology | 1 |
|
| |||
| propagation test | |||
| испытание на распространение: 3 phrases in 3 subjects |
| Firefighting and fire-control systems | 1 |
| Polymers | 1 |
| Technology | 1 |