 |
| distribution valve: 21 phrases in 12 subjects |
| Aviation | 1 |
| Construction | 2 |
| Energy industry | 1 |
| Firefighting and fire-control systems | 1 |
| Hydroelectric power stations | 1 |
| Mechanic engineering | 2 |
| Nautical | 3 |
| Rail transport | 1 |
| Roll stock | 1 |
| Technology | 6 |
| Thermal engineering | 1 |
| Turbines | 1 |