成本低:除了砂轮以外几乎没有其它耗材,节省了耗材成本。
Low cost: it almost no other consumables in addition to the grinding wheel. It can saves material costs.
可能计划菜单,确定食物份量的大小,估计粮食需求和成本,以及检测和订购耗材。
May plan menus, determine size of food portions, estimate food requirements and costs, and monitor and order supplies.
无任何耗材,使用成本低。
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