ideally : 26 phrases in 15 subjects |
Acoustics | 1 |
Advertising | 1 |
Automated equipment | 1 |
Aviation | 2 |
Construction | 3 |
General | 2 |
Geophysics | 2 |
Makarov | 3 |
Mathematics | 2 |
Mechanics | 1 |
Nanotechnology | 3 |
Scientific | 1 |
Seismology | 1 |
Technology | 2 |
Transport | 1 |