external memoryexternal programexternal resistanceexternal signalexternal viewerexternal voltageextinctionextinction angleextra high voltageextragalactic radio sourceextraodinary componentextrapolationextraterrestrial noiseextreinsic propertiesextremeextreme valueextremely high frequencyextremely low frequencyextremumextrinsicextrinsic semiconductorextrisic materialff layerf numberf regionf scopef vf v converterf v v ff1 layerf2 layerfafaafabricatefabricationfabrication procedurefabrication techniquefaceface bondface centeredfaceplatefacimilefacsimilefacsimile copyfacsimile machinefacsimile signalfacsimile transmissionfactorfactory
