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设计说明此设计为十字路口交通灯控制系统,分东西道和南北道。当一道有车而另一道无车时,交通灯控制系统能立即让有车道放行;若有紧急车辆要求通过时,此
Design Description This design is a traffic light control system at the crossroads. It is divided into East West Road and South North Road. When there is a car and the other car free, the traffic light control system can let a lane be released immediately. If an emergency vehicle requires passage, this