片语
multi-echelon distribution inventory system多级分销库存系统
multi-echelon inventory多级库存
centralized multi-echelon jointly inventory中心化多级库存联合控制
echelon inventory position库存状况
multi-echelon inventory model多阶层库存模型
echelon inventory level梯队库存水平
two-echelon inventory二级库存
two-echelon inventory system二级库存系统
echelon inventory control级库存控制