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| внешняя граница; внешний контур | |||
| внешние границы; контур питания (пласта) | |||
| external boundary: 28 phrases in 9 subjects |
| Aviation | 2 |
| Makarov | 2 |
| Mathematics | 1 |
| Military | 1 |
| Nanotechnology | 1 |
| Oil / petroleum | 12 |
| Oil and gas | 3 |
| Oil and gas technology | 5 |
| Programming | 1 |