需求量有下界的运输问题

THE TRANSPORTATION PROBLEM TO DEMAND QUANTITY BOUNDED FROM BLOW

经典的产销平衡运输问题通常利用表上作业法进行求解。但要实际上，由于诸多因素的限制，要求制订出的调运方案将产地的所有产量全部运出，而对某些销售地的需求量满足规定的数量，另外一些销售地的需求量不少于规定的下界．

For the standard thansportation problem, the relevant optimal solution could be found by thansportation statistical tables.However, owing to the limits of many factors, the plan of transportation demands that all the supply in each are a be transported. The demanding amount be met in certain sales areas and not be less than the stipulated lewer boune in some other areas. The paper gives a method on the table work for solving the transportation problem.