oyster bank 牡蛎滩
RFID chips can already be found in contactless CARDS, including bank CARDS and the Oyster system which is used by more than 10 million people to pay for public transport in London.
射频识别芯片已大量应用于非接触式卡片，比如银行卡和超过1000万伦敦人支付公交费用使用的“牡蛎卡”。
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