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.
数字现金没有借记卡或信用卡所具有的缺点。
Digital cash has none of the debit or credit card's drawbacks.
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.
攒钱可以给一些人带来幸福，比如他们看到信用卡中的数字时。
Saving money brings some people happiness when they see the large number in credit card.
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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