| |||
monitoring system | |||
back signalling | |||
supervision signaling (oleg.vigodsky); supervisory signaling (ssn); supervisory signalling (ssn) |
контрольная сигнализация: 14 phrases in 8 subjects |
Communications | 1 |
Firefighting and fire-control systems | 1 |
Mass media | 3 |
Military | 2 |
Sakhalin R | 1 |
Security systems | 2 |
Technology | 2 |
Telecommunications | 2 |