contaminate: 38 phrases in 15 subjects |
Apollo-Soyuz | 1 |
Astronautics | 2 |
Aviation | 1 |
Chemistry | 1 |
Ecology | 4 |
General | 2 |
Makarov | 11 |
Medical | 1 |
Military | 3 |
Natural resourses and wildlife conservation | 1 |
Oil / petroleum | 1 |
Oil and gas technology | 1 |
Oilfields | 1 |
Technology | 7 |
Water supply | 1 |