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Radio-frequency-identification
- RFID is an area of automatic identifi cation that is gaining momentum and is considered by some to emerge as one of the most pervasive computing technologies in history. In its simplest form, RFID is a similar concept to bar coding. It is
CDMA20001_0
- 对高速铁路状态下CDMA2000网络覆盖关键技术进行了描述,请大家下载观看。-CDMA2000 high-speed rail network covers the state described the key technologies, please download viewing.