2017美赛O奖论文def全集

AnalysisandOptimizationtotheProcessofAirportSecurityCheckSummarySecuritycheckisessentialtothesafetyofairlinepassengers.However,itisalsoatimeconsumingprocess.Passengershavetowaitinlines,getIDcheck,preparethebelong-ingsandgetscreeninginspectionandsometime