LOCK-AND-BLOCK SYSTEM


Meaning of LOCK-AND-BLOCK SYSTEM in English

| ̷ ̷ ̷ ̷| ̷ ̷- noun

Britain : a railway block system in which the signals permitting a train to enter a block are locked while a train is in the block and automatically unlocked as it leaves the block

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.