This system chooses scheduling policy of flow depending on user's Numbers of back-order, and delivers the back-order into the user in fixed time and place.

该系统依据用户提交的订货数量不同采取不同的物流调度策略，从而能在指定时间和地点迅速将订货送到用户手中。

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This system chooses scheduling policy of flow depending on user's Numbers of back-order, and delivers the back-order into the user in fixed time and place.

该系统依据用户提交的订货数量不同采取不同的物流调度策略，从而能在指定时间和地点迅速将订货送到用户手中。

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