 |
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| emergency operation (о двигателе) | |||
| emergency operation; emergency service | |||
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| emergency operation | |||
| работа в аварийных условиях: 5 phrases in 5 subjects |
| Electronics | 1 |
| Energy system | 1 |
| Firefighting and fire-control systems | 1 |
| Military | 1 |
| Oil and gas technology | 1 |