| |||
| назначение аварийного сигнала (oleg.vigodsky) | |||
|
alarm assignment : 6 phrases in 2 subjects |
| Firefighting and fire-control systems | 4 |
| Measuring instruments | 2 |
| |||
| назначение аварийного сигнала (oleg.vigodsky) | |||
|
alarm assignment : 6 phrases in 2 subjects |
| Firefighting and fire-control systems | 4 |
| Measuring instruments | 2 |