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armok01128656.rar
- 基于U2270B和AT89S52的125K射频识别的PCB板子的原件protel打开的,U2270B and AT89S52 based on radio frequency identification of the PCB board 125K of the original open protel
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- 一种门禁的研制 id 125k 门禁 刷卡系统-Development of an access control