centralized traffic control

signalling block system

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

Катэгорыі:

signalling block system