separable : 46 phrases in 14 subjects |
Agriculture | 3 |
Astronautics | 5 |
Aviation | 4 |
Cables and cable production | 5 |
Chemistry | 1 |
Computers | 1 |
Forestry | 1 |
Hydraulic engineering | 1 |
Mathematics | 18 |
Metallurgy | 2 |
Military | 1 |
Nuclear physics | 1 |
Technology | 2 |
Welding | 1 |