ITU-R P.1238-5建议书用于规划频率范围在900 MHz到100 GHz内的室内无线电通信系统和无线

ITU-R P.1238-5建议书用于规划频率范围在900 MHz到100 GHz内的室内无线电通信系统和无线

18 Pages · 2007 · 1.03 MB · Chinese
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“ I want to sing like the birds sing, not worrying about who hears or what they think. ” ― Rumi
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