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plug flow : 31 phrases in 20 subjects |
| Astronautics | 1 |
| Automobiles | 1 |
| Aviation | 1 |
| Biotechnology | 1 |
| Chemistry | 4 |
| Drilling | 2 |
| Ecology | 2 |
| Electronics | 1 |
| Energy industry | 1 |
| Gas processing plants | 1 |
| Immunology | 1 |
| Makarov | 1 |
| Nanotechnology | 2 |
| Oil / petroleum | 4 |
| Oil and gas technology | 1 |
| Oil processing plants | 1 |
| Polymers | 2 |
| Solar power | 1 |
| Technology | 2 |
| Water resources | 1 |