IC card application system is replacing magnetic bar code card. It is an advanced system because of its advantages and the application field is very extensive.
IC卡应用系统由于其自身的优势正逐步代替磁卡等应用系统，应用领域非常广泛。
On the back of the card, a 2d bar-code along with a regular one and a magnetic stripe triplicate all the information on the front.
在卡背面，2d条形码，普通码和磁条将所有信息三重储存在卡正面。
Sorry, there is something wrong with the magnetic stripe (bar code). It must be replaced. Please borrow it next time.
对不起，该书磁条(条码)有问题，须更换，请下次再借。
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