public -switched network : 39 phrases in 18 subjects |
Astronautics | 2 |
Communications | 2 |
Computer networks | 4 |
Computers | 3 |
Electronics | 1 |
European Bank for Reconstruction and Development | 1 |
Information security and data protection | 1 |
Information technology | 1 |
Internet | 1 |
Mass media | 1 |
Meteorology | 1 |
Microsoft | 1 |
Military | 1 |
Oil / petroleum | 2 |
Sakhalin R | 1 |
Security systems | 1 |
Technology | 4 |
Telecommunications | 11 |