美国现在流通中的磁条信用卡和储值卡超过50亿张，我们可以用这个数字乘以3美元。
Multiply $3 by the more than 5 billion magstripe credit and prepaid cards in circulation in the U.S.
这是一种三位数字的代码，印在信用卡的背面，多数，但不是所有的电子零售商在进行买卖交易是都要求提供这一代码。
That's the three-digit code on the back of every credit card that most, but not all, e-retailers ask for when making a purchase.
他算出他同学信用卡的具体数字。
He figured out the exact figures of his classmates' credit CARDS.
目前，数字指纹技术主要用于防止软件盗版拷贝或是信用卡诈骗技术。
Until recently, fingerprinting was used mainly to prevent illegal copying of computer software or to thwart credit-card fraud.
一旦用户通过小键盘上的四个按钮输入正确的个人身份证号码，缺损的数字才会显现出来，这样才能看到完整的卡号；而且这时信用卡的磁条也会被填入数据，磁条锁定便被解开可以在网上或者商店购物。
Once the correct PIN is entered on the card's four buttons, the missing digits are filled in and the card's magnetic strip is populated with data.
然而不久后，某一天下午，他算了算自己的信用卡债务总额--9000元左右的数字令他目瞪口呆。
Then, one ordinary afternoon, he calculated his debt and the amount - around 9, 000 yuan - stunned him.
从1966年起信用卡就一直在进化，但是核心支付过程却从未变过：人们要么把卡手把手地交给售货员，要么将卡塞进机器，读取上面的数字和信息。
Credit CARDS have evolved since 1966, but the basic procedure of payment has remained the same. A card is either handed over, or the number on it is read out or entered into a machine.
这是个最糟的梦魇：你的信用卡账单来了，但是上面的数字并不符合。
It's your worst nightmare: your credit card bill arrives, but the figures don't tally up.
去年，诸如信用卡和借记卡记录在内的超过800m的数字文件被删除或丢失，是2012年的三倍之多。
Last year morethan 800m digital records, such as credit- and debit-card details, were pinched or lost, morethan three times as many as in 2012.
你每年可以查看自己的信用卡积分，这是非常重要的数字，而不仅仅是你的信用报告。
You'll also have annual access to your credit score, that all-important number, not just your credit report.
分析了传统模拟线路的信用卡刷卡服务存在的问题，并提出了一个使用数字线路的方案及其实现技术。
The problems of providing the traditional credit-card service on the analog line are analyzed first in this paper.
分析了传统模拟线路的信用卡刷卡服务存在的问题，并提出了一个使用数字线路的方案及其实现技术。
The problems of providing the traditional credit-card service on the analog line are analyzed first in this paper.
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