 |
| gas regulator: 39 phrases in 17 subjects |
| Astronautics | 3 |
| Automatic control | 1 |
| Automobiles | 1 |
| Chemistry | 1 |
| Combustion gas turbines | 1 |
| Energy industry | 1 |
| European Union | 1 |
| General | 1 |
| Industry | 1 |
| Military | 2 |
| Mining | 1 |
| Oil / petroleum | 3 |
| Refrigeration | 3 |
| Technology | 11 |
| Transport | 1 |
| Weapons and gunsmithing | 5 |
| Welding | 2 |