| |||
| обращённый спектр | |||
|
inverted spectrum : 2 phrases in 2 subjects |
| Information security and data protection | 1 |
| Security systems | 1 |
| |||
| обращённый спектр | |||
|
inverted spectrum : 2 phrases in 2 subjects |
| Information security and data protection | 1 |
| Security systems | 1 |