 |
| process wastes: 37 phrases in 17 subjects |
| Astronautics | 1 |
| Chemistry | 2 |
| Ecology | 3 |
| Economy | 2 |
| Energy industry | 6 |
| Gas processing plants | 2 |
| General | 1 |
| Makarov | 4 |
| Microelectronics | 1 |
| Nanotechnology | 1 |
| Natural resourses and wildlife conservation | 3 |
| Oil and gas | 1 |
| Physics | 1 |
| Technology | 4 |
| Waste management | 2 |
| Water supply | 1 |
| Weapons of mass destruction | 2 |