2 relations: Communications-based train control, Confederação Brasileira de Trabalhadores Cristãos.
Communications-based train control
Communications-based train control (CBTC) is a railway signaling system that makes use of the telecommunications between the train and track equipment for the traffic management and infrastructure control.
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Confederação Brasileira de Trabalhadores Cristãos
The Confederação Brasileira de Trabalhadores Cristâos (CBTC) is a trade union centre in Brazil.
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