| 单词 | U-NII (Unlicensed National Information Infrastructure) |
| 释义 | U-NII (Unlicensed National Information Infrastructure) Radio spectrum in the 5 GHz range made available for use on an unlicensed basis in the United States. Indoor applications include wireless LANs (WLANs) such as 802.11a (Wi-Fi5) and HiperLAN. Outdoor applications include wireless local loop (WLL). See also 802.11a, HiperLAN, Wi-Fi-5, WLAN, and WLL. |
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科学参考收录了5291条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。