 |
| accumulator pressure: 42 phrases in 15 subjects |
| Aerohydrodynamics | 2 |
| Astronautics | 3 |
| Automobiles | 1 |
| Electrical engineering | 1 |
| Electronics | 1 |
| Energy industry | 1 |
| Mechanic engineering | 2 |
| Nautical | 3 |
| Oil / petroleum | 2 |
| Oil and gas technology | 2 |
| Oilfields | 3 |
| Pulp and paper industry | 3 |
| Refrigeration | 2 |
| Technology | 14 |
| Transport | 2 |