environmental equipment: 35 phrases in 13 subjects |
Astronautics | 4 |
Aviation | 3 |
Ecology | 1 |
Electrical engineering | 1 |
Energy industry | 4 |
General | 1 |
Military | 8 |
Nanotechnology | 3 |
Nuclear and fusion power | 1 |
Refrigeration | 1 |
Security systems | 1 |
Technology | 6 |
Transport | 1 |