emergency key应急电键emergencyn.突发事件；紧急状态adj.应急的；紧急的；备用的Emergency Service Medal紧急服务奖章Emergency Recovery Unit紧急抢修小队emergency closing valve应急阀Emergency Return Device应急返回装置emergency circumstances[法] 非常情况, 紧急情况Emergency injury events突发伤害事件emergency exit lighting紧急出口照明emergency gasoline tank应急汽油箱emergency oxygen system应急供氧系统Emergency Standby Order紧急待命