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在工厂(如饲料厂、糖厂、食品厂)和港口码头等地方,常常要清点传输带上移动着的物品,以便对物品数目进行统计。
In factories (such as feed mills, sugar mills, food factories) and port terminals, it is often necessary to count the moving objects on the conveyor belt in order to count the number of items.