 |
| flow gauge: 19 phrases in 15 subjects |
| Astronautics | 1 |
| Cement | 2 |
| Construction | 1 |
| Drilling | 2 |
| Hydrology | 1 |
| Mining | 1 |
| Molikpaq | 1 |
| Natural resourses and wildlife conservation | 1 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 3 |
| Polymers | 1 |
| Technology | 1 |
| Thermal engineering | 1 |
| Transport | 1 |