photoconductive effect photoconductivity photoconductor photoconductor target photocopier photocopy photocopying photocurrent photocurrent density photodiode photodiode parametric amplifier photoduplicate photoeffect photoelasticity photoelastic method photoelastic study photoelastic varnish photoelectret photoelectret state photoelectric |
photoconductive effect вътрешен фотоефект фото проводимост Търсената дума е намерена |