Mudo
trilhadeengenharia
Esse bastão é o token ferroviário. Só o trem que carrega ele pode entrar no trecho de via única. Assim, dois trens nunca se encontram no mesmo trilho — sistema de segurança usado há mais de 150 anos ⚙️. Curadoria técnica @trilhadeengenharia #Engenharia #TrilhaDeEngenharia #Ferrovias #Tecnologia #Curiosidades
Seguir
23
0
9
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