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устройство тревожной сигнализации : 10 phrases in 5 subjects |
| Firefighting and fire-control systems | 1 |
| Metrology | 2 |
| Military | 3 |
| Security systems | 3 |
| Technology | 1 |
|
|
устройство тревожной сигнализации : 10 phrases in 5 subjects |
| Firefighting and fire-control systems | 1 |
| Metrology | 2 |
| Military | 3 |
| Security systems | 3 |
| Technology | 1 |