 |
| valve seat: 228 phrases in 26 subjects |
| Apollo-Soyuz | 3 |
| Armored vehicles | 17 |
| Automated equipment | 9 |
| Automobiles | 29 |
| Caspian | 1 |
| Construction | 9 |
| Drilling | 1 |
| Energy industry | 1 |
| General | 3 |
| Machine components | 5 |
| Makarov | 6 |
| Mechanic engineering | 3 |
| Mechanics | 2 |
| Military | 3 |
| Mining | 1 |
| Nautical | 1 |
| Oil / petroleum | 14 |
| Oil and gas | 5 |
| Oil and gas technology | 9 |
| Oilfields | 3 |
| Pumps | 1 |
| Rail transport | 2 |
| Shipbuilding | 2 |
| Technology | 89 |
| Thermal engineering | 2 |
| Transport | 7 |