 |
| |||
| army corps of engineers (США Caithey) | |||
| Инженерный корпус армии: 15 phrases in 5 subjects |
| Firefighting and fire-control systems | 1 |
| General | 1 |
| Hydraulic engineering | 1 |
| Military | 11 |
| Technology | 1 |
|
| |||
| army corps of engineers (США Caithey) | |||
| Инженерный корпус армии: 15 phrases in 5 subjects |
| Firefighting and fire-control systems | 1 |
| General | 1 |
| Hydraulic engineering | 1 |
| Military | 11 |
| Technology | 1 |