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crash barrier的英文翻译是什么意思，词典释义与在线翻译：
英英释义
Noun:
-
a strong protective barrier that is erected around a racetrack or in the middle of a dual-lane highway in order to reduce the likelihood of severe accidents
crash barrier的用法和样例：
例句
用作名词 (n.)
- Ideally, the cars slide along this wall or crash barrier and dissipate energy and speed.
理想上，赛车沿着这面墙或者是防撞护栏消散冲击力和速度。
