预扫描 meaning in English

prescan

The items are prescanned on a wireless pervasive device
商品在无线普及设备上进行预扫描。
Once the card is scanned , the system is able to pull up all the prescanned items and the transaction is completed in a timely fashion
一旦卡被扫描，系统就能拖出所有的预扫描商品，事务很快就能完成。
In a warehouse shopping center example , currently the warehouse checkout procedures allow for prescanning of items while members are waiting in line
在大型商店购物中心实例中，通常，大型商店结算过程需要预扫描商品，虽然会员们正在排队等候。