就象城市公共交通IC卡一样，这些卡在交给公交系统使用前，每张卡的密钥都要进行出厂加密控制。
Like urban public transport as IC CARDS, these CARDS to the public transport system, each card key encryption to have control of the factory.
就象城市公共交通IC卡一样，这些卡在交给公交系统使用前，每张卡的密钥都要进行出厂加密控制。
Like urban public transport as IC CARDS, these CARDS to the public transport system, each card key encryption to have control of the factory.
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