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трубопроводно | эксплуатационное отделение
| эксплуатационное отделение | |
| mil. | operating division |
| mil. tech. | operations subsection |
| трубопроводно: 4 phrases in 3 subjects |
| Astronautics | 1 |
| Military | 2 |
| Oil and gas | 1 |