网络 Upward and downward Up and down upward flow-downward flow
The third step is to define the distribution of passengers in need of service and the percentage of up-direction or down-direction in each floor every 5 minutes in the building.
确定每5分钟时间段大楼内各楼层要求服务乘客数分布和上行下行百分比。
—— 给力词典精选