источник бесперебойного питания: 38 phrases in 10 subjects |
Computer networks | 8 |
Computers | 2 |
Electrical engineering | 4 |
Electricity | 1 |
General | 1 |
Information technology | 10 |
Mass media | 7 |
Security systems | 1 |
Technology | 3 |
Weapons of mass destruction | 1 |