emergency SC应急供应链emergencyn.突发事件；紧急状态adj.应急的；紧急的；备用的emergency ladle备用罐emergency radio应急无线电设备emergency alarm紧急报警emergency nurse急诊护士emergency revue应急救援emergency pulse呼救脉冲Emergency class应急状态emergency risks紧急危险emergency motor应急电动机emergency cabin应急舱室