Kev ruaj ntseg system - nws yog dab tsi? Perimeter kev ruaj ntseg system: nta. Perimeter ceeb toom systems thiab lawv ntau yam. Cov yam ntxwv ntawm cov khoom siv xov tooj cua beam. Gyurza xov tooj cua yoj system yog dab tsi? Txheej txheem cej luam ntawm perimeter signaling systems. Kev ruaj ntseg system "Bolid": nta. Fiber-optic kev ruaj ntseg system "Voron". Tej yam yuav tsum nco ntsoov thaum xaiv qhov system. Kawg hloov kho: 2023-12-16 03:12