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单词 Industrial, Scientific and Medical
释义
Industrial, Scientific and Medical

Electronics and Electrical Engineering
  • Regions of the radio spectrum for which no licence to transmit is required and no fees are payable, provided transmit powers and duty cycles are kept within set limits. For this reason they are very popular and becoming increasingly crowded. Wireless local area networks (WLANs) and Bluetooth operate in the ISM band.


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