 |
|
common control system : 8 phrases in 5 subjects |
| Firefighting and fire-control systems | 1 |
| Mass media | 1 |
| Military | 4 |
| Space | 1 |
| Transport | 1 |
|
|
common control system : 8 phrases in 5 subjects |
| Firefighting and fire-control systems | 1 |
| Mass media | 1 |
| Military | 4 |
| Space | 1 |
| Transport | 1 |