Crash bar

A crash bar (also known as a panic bar, exit device, panic device, or a push bar) is a device for unlocking a door during emergency conditions. The mechanism consists of a spring-loaded metal bar fixed horizontally to the inside of an outward-opening door. When the lever is either pushed or depressed, it activates a mechanism which unlatches the door allowing occupants to leave quickly from the building.

单词	Crash bar
释义	Crash bar 原声例句暮光之城：暮色 There were metal guards over the headlights and tail-lights, and four large spotlights attached to the crash bar. 车的前灯和尾灯周围都围着金属护栏，防撞栏上安装着四个巨大的探照灯。英语百科 Crash bar A crash bar (also known as a panic bar, exit device, panic device, or a push bar) is a device for unlocking a door during emergency conditions. The mechanism consists of a spring-loaded metal bar fixed horizontally to the inside of an outward-opening door. When the lever is either pushed or depressed, it activates a mechanism which unlatches the door allowing occupants to leave quickly from the building.
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