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RFID-Security
- Radio Frequency Identification [RFID] systems have become popular for automated identification and supply chain applications. This article describes the technical fundamentals of RFID systems and the associated standards. Specifically, we
PFX
- 安卓apk:(带负荷判方向)由有功无功计算电压超前电流的角度,由电压电流及其角度计算有功无功。-Voltage leading current by active idle computational point of view, the current and voltage angle calculation of active power reactive power without.