c?m: 33 phrases in 17 subjects |
Abbreviation | 1 |
Agriculture | 1 |
Air defense | 1 |
Aviation | 1 |
Business | 1 |
Economy | 1 |
General | 14 |
Mathematics | 1 |
Mechanic engineering | 2 |
Metrology | 1 |
Military | 1 |
Patents | 2 |
Politics | 1 |
Psychology | 1 |
Radio | 2 |
Rude | 1 |
Technology | 1 |