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| операции технического обслуживания: 60 phrases in 13 subjects |
| Aviation | 5 |
| Caspian | 2 |
| Energy industry | 4 |
| Forestry | 1 |
| Logistics | 1 |
| Military | 11 |
| Oil / petroleum | 12 |
| Oil and gas | 1 |
| Programming | 2 |
| Quality control and standards | 14 |
| Reliability | 1 |
| Technology | 4 |
| Telecommunications | 2 |