 |
| air cleaner: 145 phrases in 30 subjects |
| Agriculture | 1 |
| Air conditioners | 1 |
| Armored vehicles | 4 |
| Automobiles | 20 |
| Aviation | 2 |
| Biotechnology | 1 |
| Chemical industry | 1 |
| Construction | 9 |
| Ecology | 3 |
| Economy | 1 |
| Electrical engineering | 3 |
| Energy industry | 11 |
| Engines | 1 |
| Environment | 4 |
| General | 1 |
| Ground forces Army | 1 |
| Household appliances | 1 |
| Makarov | 6 |
| Natural resourses and wildlife conservation | 1 |
| Nautical | 3 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Production | 2 |
| Rail transport | 2 |
| Refrigeration | 1 |
| Sakhalin | 1 |
| Technology | 53 |
| Transport | 6 |
| United Nations | 2 |
| Weapons of mass destruction | 1 |