Generally the problem of multiphase stock replenishment was studied with two assumptions, i. e., take inventory continuously to examine the whole quantity ordered at any time and take inventory cyclically to examine the quantity just ordered discretely.

• 摘要多阶段存贮问题一般在两种假定下研究，按照存货状况在任何时刻订货的连续查看假定和订货仅在离散时刻着手的周期查看假定。