crush barrier
noun [ C ] UK uk/ˈkrʌʃ ˌbær.i.ər/ us/ˈkrʌʃ ˌbær.i.ɚ/
（举行足球比赛等时用以阻挡人群的）挡挤栏，防挤栏杆
a strong fence that is used to divide a large crowd, for example at a sports game, to stop them from being pressed too close together
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