emergencyn.突发事件；紧急状态adj.应急的；紧急的；备用的emergency squad应变小组emergency hatch应急舱门emergency drain紧急排放emergency state紧急状态emergency count紧急点名emergency level紧急标准; 紧急状态emergency reset应急复位emergency event突发事件emergency valve安全阀emergency plans应急预案