центр : 197 phrases in 17 subjects |
Environment | 12 |
Firefighting and fire-control systems | 1 |
General | 19 |
Informal | 1 |
Mathematics | 4 |
Meteorology | 1 |
Microsoft | 69 |
Military | 23 |
Oceanography & oceanology | 4 |
Optics branch of physics | 1 |
Photography | 1 |
Physics | 4 |
Politics | 1 |
Sports | 1 |
Statistics | 1 |
Technology | 52 |
Television | 2 |