 |
| reducing valve: 96 phrases in 25 subjects |
| Agriculture | 2 |
| Aluminium industry | 1 |
| Artillery | 1 |
| Automated equipment | 4 |
| Chromatography | 1 |
| Combustion gas turbines | 2 |
| Construction | 3 |
| Firefighting and fire-control systems | 1 |
| General | 1 |
| Law | 1 |
| Mechanic engineering | 5 |
| Medical | 1 |
| Medical appliances | 1 |
| Military | 2 |
| Nuclear and fusion power | 2 |
| Oil / petroleum | 2 |
| Oil and gas technology | 2 |
| Oilfields | 1 |
| Rail transport | 4 |
| Shipbuilding | 1 |
| Technology | 53 |
| Tengiz | 2 |
| Textile industry | 1 |
| Transport | 1 |
| Water supply | 1 |