Some supermarkets use a special device that can "read" this code and automatically produce a receipt, and can store the information so that the shop-keeper can tell when his stock gets low.
有些超级市场使用一种特殊装置,可以“读出”这种暗码,并自动打出收据,而且可以把信息储存起来,使店主知道他的存货什么时候售完。
Some supermarkets use a special device that can "read" this code and automatically produce a receipt, and can store the information so that the shop-keeper can tell when his stock gets low.
有些超级市场使用一种特殊装置,可以“读出”这种暗码,并自动打出收据,而且可以把信息储存起来,使店主知道他的存货什么时候售完。
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