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unit separator : 19 phrases in 14 subjects |
| Astronautics | 2 |
| Energy industry | 1 |
| Makarov | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 4 |
| Oil and gas technology | 1 |
| Polygraphy | 1 |
| Radioengineering | 1 |
| Refrigeration | 1 |
| Sakhalin | 2 |
| Sakhalin R | 1 |
| Technology | 1 |
| Telecommunications | 1 |
| Transport | 1 |