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Os Dowty Retarders utilizam um sistema mecânico-hidráulico para controlar automaticamente a velocidade dos vagões em pátios ferroviários. Sem precisar de eletricidade, eles aumentam a resistência quando a velocidade está acima do limite e ajudam a reduzir os impactos durante o engate. #curiosidades #Trem #engenharia #tecnologia
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Essa música virou o hino de nova York,dominou premiações,e até hoje e considerada uma das maiores de todos os tempos.🎼🎧🎤#HipHop#jayz##viral
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