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| thread buttress: 24 phrases in 15 subjects |
| Automobiles | 1 |
| General | 2 |
| Mechanic engineering | 1 |
| Mechanics | 2 |
| Military | 2 |
| Nautical | 1 |
| Oil / petroleum | 2 |
| Oil and gas | 5 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
| Pipelines | 1 |
| Plastics | 1 |
| Rail transport | 1 |
| Sakhalin | 2 |
| Tengiz | 1 |