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emergency brake /ɪmˈɜːdʒənsi ˈbɹeɪk/ n

中文：紧急制动阀

中文 · 紧急制动阀Español · freno de emergenciaFrançais · frein d’urgence
Meaning：Device that stops the train; it is available to users in case of emergency.
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Subway car

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