 |
| gravity water: 59 phrases in 19 subjects |
| Architecture | 1 |
| Automobiles | 2 |
| Aviation medicine | 1 |
| Construction | 15 |
| Ecology | 3 |
| Electronics | 1 |
| Energy industry | 1 |
| Firefighting and fire-control systems | 1 |
| Hydraulic engineering | 2 |
| Hydrology | 3 |
| Makarov | 4 |
| Natural resourses and wildlife conservation | 1 |
| Nautical | 2 |
| Oil / petroleum | 8 |
| Oil and gas | 5 |
| Oil and gas technology | 1 |
| Oilfields | 2 |
| Technology | 5 |
| Thermal engineering | 1 |