вуглець: 92 phrases in 15 subjects |
Astronautics | 1 |
Aviation | 8 |
Chemistry | 31 |
Ecology | 5 |
Economy | 2 |
Environment | 7 |
General | 4 |
Metallurgy | 7 |
Meteorology | 2 |
Microelectronics | 3 |
Military | 2 |
Natural resourses and wildlife conservation | 3 |
Natural sciences | 1 |
Oil and gas | 15 |
Technology | 1 |