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| electronic surveillance (электронных средств связи Alex_Odeychuk) | |||
| electronic surveillance of the communications (of ... – чьих-либо; New York Times Alex_Odeychuk) | |||
| негласное снятие информации с технических каналов связи: 9 phrases in 3 subjects |
| Intelligence and security services | 5 |
| Law | 1 |
| Security systems | 3 |