In this research, there are big difference of inventory management and control between reverse logistics and forward logistics.
本文所研究的基于逆向物流的库存控制与管理，与传统的前向物流的库存控制与管理有着很大的区别。
With three actions: forward, reverse and stay still with vibration, it is characterized by the hydraulic control, making little noises and stable function.
三种振动状态：前进、后退、不位移。液压控制，噪音低，传动可靠。
With three actions: forward, reverse and stay still with vibration, it is characterized by the hydraulic control, making little noises and stable function.
三种振动状态：前进、后退、不位移。液压控制，噪音低，传动可靠。
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