 |
| valve port: 128 phrases in 19 subjects |
| Astronautics | 2 |
| Automated equipment | 6 |
| Automobiles | 1 |
| Chromatography | 1 |
| Construction | 5 |
| Drilling | 1 |
| Electrical engineering | 1 |
| General | 3 |
| Makarov | 10 |
| Mechanic engineering | 3 |
| Mechanics | 3 |
| Nautical | 6 |
| Oil and gas technology | 1 |
| Pipelines | 1 |
| Shipbuilding | 2 |
| Technology | 75 |
| Tengiz | 1 |
| Thermal engineering | 1 |
| Transport | 5 |