Waving a smart card in front of a radio frequency identification (RFID) reader can provide access to buildings, pay for subway rides, and even initiate credit-card transactions. With more than a billion units sold, the NXP Mif are Classic RFID tag is the most commonly used smart-card chip; it can be found in the London subway system's Oyster card, Australia's SmartRider, and the Boston subway's Charlie Card.
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机译：在射频识别（RFID）读取器前挥舞智能卡可以提供进入建筑物，为地铁付费的费用，甚至可以进行信用卡交易。恩智浦Mif are Classic RFID标签已售出超过10亿个单位，是最常用的智能卡芯片。可以在伦敦地铁系统的Oyster卡，澳大利亚的SmartRider和波士顿地铁的Charlie卡中找到它。
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