centralized traffic control

signalling block system

en-GB/ˈsɛntɹəlaɪzd ˈtɹæfɪk kənˈtɹəʊl/
en-US/ˈsɛntɹəˌlaɪzd ˈtɹæfɪk kənˈtɹoʊl/

Kategoriler:

signalling block system