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日本虽然在第二代移动通信领域因专注于自我标准PDC而一度偏离了GSM这个大方向,然而,在3G甚至4G路上,它却是个不折不扣的急先锋
Although Japan in the field of second-generation mobile communications devoted itself to the general direction of GSM because of its focus on self-standard PDC, it is an out-and-out pioneer on the 3G or even 4G road