 |
| gas main: 94 phrases in 21 subjects |
| Armored vehicles | 1 |
| Astronautics | 2 |
| Chemistry | 1 |
| Combustion gas turbines | 1 |
| Construction | 3 |
| Economy | 1 |
| Energy industry | 1 |
| Facilities | 1 |
| Gas processing plants | 1 |
| General | 7 |
| Geophysics | 4 |
| Metallurgy | 9 |
| Military | 1 |
| Natural resourses and wildlife conservation | 2 |
| Oil / petroleum | 10 |
| Oil and gas | 21 |
| Oil and gas technology | 2 |
| Sakhalin | 4 |
| Technology | 18 |
| Thermal engineering | 3 |
| Weapons of mass destruction | 1 |