 |
| impeller pump: 47 phrases in 19 subjects |
| Armored vehicles | 2 |
| Astronautics | 5 |
| Automated equipment | 3 |
| Aviation | 1 |
| Construction | 1 |
| Electrical engineering | 2 |
| Energy industry | 2 |
| Mining | 1 |
| Nautical | 4 |
| Oil / petroleum | 6 |
| Oil and gas | 1 |
| Oilfields | 2 |
| Pumps | 2 |
| Rail transport | 1 |
| Shipbuilding | 2 |
| Technology | 5 |
| Thermal engineering | 3 |
| Transport | 2 |
| Water supply | 2 |