toxic substance: 58 phrases in 17 subjects |
Aviation | 1 |
Ecology | 11 |
Energy industry | 2 |
Environment | 3 |
Fish farming pisciculture | 1 |
General | 2 |
Makarov | 7 |
Medical | 10 |
Nanotechnology | 2 |
Natural resourses and wildlife conservation | 1 |
Oil / petroleum | 1 |
Oil and gas | 3 |
Sakhalin | 1 |
Security systems | 1 |
Technology | 3 |
Toxicology | 3 |
Weapons of mass destruction | 6 |