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frequency division duplex (FDD)
frequency division multiple access (FDMA)
frequency division multiplexer (FDM)
frequency division multiplexing (FDM)
frequency (f)
frequency-hopping spread spectrum (FHSS)
frequency modulation (FM)
frequency-shift keying (FSK)
frequency spectrum
Fresnel, Augustin-Jean (1788–1827)
Fresnel reflection
Fresnel reflection
Fresnel reflection
Fresnel refraction
Friis, Harald T. (1893–1976)
FRND (Frame Relay Network Device)
front end processor (FEP)
FRS (Family Radio Service)
FSAN (Full Service Access Network)
FSK (Frequency-Shift Keying)
FSO (Free Space Optics)
FSS (Fixed Satellite System)
FT1 (Fractional T1)
FT1 (Fractional T1)
FTC (Federal Trade Commission)
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更新时间:2024/12/27 8:29:12