crash cushion meaning in English

防撞缓冲器

Road traffic crash cushion cylinder
道路交通防撞墩
Road restraint systems - performance classes , impact test acceptance criteria and test methods for crash cushions
道路防护系统.防撞缓冲物的性能等级冲击试验验收标准和试验方法
Road restraint systems - part 3 : performances classes , impact test acceptance criteria and test methods for crash cushions
道路限制系统.第3部分:性能分级冲击试验验收标准和减震试验方法
Road restraint systems - part 3 : performance classes , impact test acceptance criteria and test methods for crash cushions ; german version en 1317 - 3 : 2000
道路限制系统.第3部分:事故缓冲器的性能分类冲击试